| 单词 | class |
| 释义 | class (once / 37 pages) 1nv 2n 3n 4n If you attend school, you probably have a favorite class — a series of lectures or discussions where you can learn about a particular subject, like English, math, or economics. The characteristic of being high quality or displaying elegance is also called class. Your snobby friend might glance around your favorite diner and say, "Let's go somewhere else. This place has no class." In society, class refers to a ranking system based on socio-economics, birth, education level, or a combination of those things. Your ancestors might have been working class, until your grandfather struck it rich. WORD FAMILYclass: classed, classes, classify, classing, classless, classy, subclass, superclass, underclass+/classifiable: classifiably, unclassifiable/classification: classifications, reclassification/classified: classifieds, unclassified/classifier: classifiers/classify: classifiable, classification, classificatory, classified, classifier, classifies, classifying, declassify, reclassify/classy: classier, classiest, classily/declassify: declassification, declassified, declassifying/reclassification: reclassifications/reclassify: reclassified, reclassifying/subclass: subclasses/underclass: underclasses USAGE EXAMPLESDown the hall in a science room, just a few minutes after classes begin, a student hurries to talk to his teacher. Washington Times(Jan 02, 2017) Between classes, teachers congregate in hallways and share progress about students. Washington Times(Jan 02, 2017) Among recent classes, 77 percent of participants earned high school or vocational credentials. New York Times(Jan 02, 2017) 1 1n a collection of things sharing a common attribute there are two classes of detergents Syn|Hypo|Hyper category, family grammatical category, syntactic category (grammar) a category of words having the same grammatical properties paradigm, substitution classthe class of all items that can be substituted into the same position (or slot) in a grammatical sentence (are in paradigmatic relation with one another) brass family(music) the family of brass instruments violin family(music) the family of bowed stringed instruments woodwind family(music) the family of woodwind instruments stampa type or class sexeither of the two categories (male or female) into which most organisms are divided declensiona class of nouns or pronouns or adjectives in Indo-European languages having the same (or very similar) inflectional forms conjugationa class of verbs having the same inflectional forms denominationa class of one kind of unit in a system of numbers or measures or weights or money histocompatibility complexa family of fifty or more genes on the sixth human chromosome that code for proteins on the surfaces of cells and that play a role in the immune response case, grammatical casenouns or pronouns or adjectives (often marked by inflection) related in some way to other words in a sentence form class, part of speech, word classone of the traditional categories of words intended to reflect their functions in a grammatical context numberthe grammatical category for the forms of nouns and pronouns and verbs that are used depending on the number of entities involved (singular or dual or plural) persona grammatical category used in the classification of pronouns, possessive determiners, and verb forms according to whether they indicate the speaker, the addressee, or a third party gender, grammatical gendera grammatical category in inflected languages governing the agreement between nouns and pronouns and adjectives; in some languages it is quite arbitrary but in Indo-European languages it is usually based on sex or animateness tensea grammatical category of verbs used to express distinctions of time participant role, semantic role(linguistics) the underlying relation that a constituent has with the main verb in a clause accumulation, aggregation, assemblage, collection several things grouped together or considered as a whole 2n people having the same social, economic, or educational status the working class an emerging professional class Syn|Exp|Hypo|Hyper social class, socio-economic class, stratum Ferdinand and Isabella joint monarchs of Spain; Ferdinand V and Isabella I William and Maryjoint monarchs of England; William III and Mary II domain, world people in general; especially a distinctive group of people with some shared interest age classpeople in the same age range agriculturethe class of people engaged in growing food brotherhood, fraternity, sodalitypeople engaged in a particular occupation estate, estate of the realm, the three estatesa major social class or order of persons regarded collectively as part of the body politic of the country (especially in the United Kingdom) and formerly possessing distinct political rights labor, labour, proletariat, working classa social class comprising those who do manual labor or work for wages lower class, underclassthe social class lowest in the social hierarchy bourgeoisie, middle classthe social class between the lower and upper classes booboisieclass consisting of all those who are considered boobs commonality, commonalty, commonsa class composed of persons lacking clerical or noble rank peasantrythe class of peasants demimondea class of woman not considered respectable because of indiscreet or promiscuous behavior underworldthe criminal class yeomanryclass of small freeholders who cultivated their own land castea social class separated from others by distinctions of hereditary rank or profession or wealth caste(Hinduism) a hereditary social class among Hindus; stratified according to ritual purity upper class, upper crustthe class occupying the highest position in the social hierarchy ninjaa class of 14th century Japanese who were trained in martial arts and were hired for espionage and assassinations firing linethe most advanced and responsible group in an activity immigrant classrecent immigrants who are lumped together as a class by their low socioeconomic status in spite of different cultural backgrounds centerpolitically moderate persons; centrists old schoola class of people favoring traditional ideas marketthe customers for a particular product or service craft, tradepeople who perform a particular kind of skilled work fair sex, woman, womanhoodwomen as a class Lords Spiritual, first estatethe clergy in France and the heads of the church in Britain Lords Temporal, second estatethe nobility in France and the peerage in Britain Commons, third estatethe common people fourth estatethe press, including journalists, newspaper writers, photographers labor force, labor poolthe source of trained people from which workers can be hired lumpenproletariat(Marxism) the unorganized lower levels of the proletariat who are not interested in revolutionary advancement organized laboremployees who are represented by a labor union petit bourgeois, petite bourgeoisie, petty bourgeoisielower middle class (shopkeepers and clerical staff etc.) academe, academiathe academic world Grub Streetthe world of literary hacks jati(Hinduism) a Hindu caste or distinctive social group of which there are thousands throughout India; a special characteristic is often the exclusive occupation of its male members (such as barber or potter) elite, elite groupa group or class of persons enjoying superior intellectual or social or economic status aristocracy, gentrythe most powerful members of a society people in power, ruling classthe class of people exerting power or authority black marketpeople who engage in illicit trade people (plural) any group of human beings (men or women or children) collectively 3n a body of students who are taught together early morning classes are always sleepy Syn|Hypo|Hyper course, form, grade master class a class (especially in music) given to talented students by an expert discussion section, sectiona small class of students who are part of a larger course but are taught separately assemblage, gathering a group of persons together in one place 4n a body of students who graduate together the class of '97 Syn|Hypo|Hyper year graduating class the body of students who graduate together this year senior classfinal grade or class in high school or college junior classpenultimate class in high school or college sophomore classthe second class in a four-year college or high school freshman classthe first class in college or high school assemblage, gathering a group of persons together in one place 5n (biology) a taxonomic group containing one or more orders Hypo|Hyper Schizomycetes, class Schizomycetes a former classification Cyanophyceae, class Cyanobacteria, class Cyanophyceaephotosynthetic bacteria found in fresh and salt water, having chlorophyll a and phycobilins; once thought to be algae: blue-green algae Sarcodina, class Sarcodinacharacterized by the formation of pseudopods for locomotion and taking food: Actinopoda; Rhizopoda Actinopoda, subclass Actinopodaheliozoans; radiolarians Rhizopoda, subclass Rhizopodacreeping protozoans: amoebas and foraminifers Ciliata, Ciliophora, class Ciliata, class Ciliophoraclass of protozoa having cilia or hairlike appendages on part or all of the surface during some part of the life cycle Infusoria, subclass Infusoriain some recent classifications, coextensive with the Ciliata: minute organisms found in decomposing infusions of organic matter Chrysophyceae, Heterokontae, class Chrysophyceae, class Heterokontaeall the yellow-green algae having flagella of unequal length Xanthophyceae, class Xanthophyceaeyellow-green algae Bacillariophyceae, Diatomophyceae, class Bacillariophyceae, class Diatomophyceaemarine and freshwater eukaryotic algae: diatoms Phaeophyceae, class Phaeophyceaebrown algae; mostly marine and littoral eukaryotic algae Cyclosporeae, class Cyclosporeaein more recent classifications superseded by the order Fucales Euglenophyceae, class Euglenophyceaecoextensive with the division Euglenophyta Chlorophyceae, class Chlorophyceaealgae distinguished chiefly by having flagella and a clear green color, their chlorophyll being masked little if at all by other pigments Ulvophyceae, class Ulvophyceaealternative name for the class Chlorophyceae in some classifications Charophyceae, class Charophyceaein some classifications: contains only the order Charales Rhodophyceae, class Rhodophyceaecoextensive with the Rhodophyta: red algae Flagellata, Mastigophora, class Flagellata, class Mastigophoraprotozoa having flagella Zoomastigina, subclass Zoomastiginain some classifications considered a phylum of the kingdom Protista; holozoic or saprozoic flagellates Phytomastigina, subclass Phytomastiginaplantlike flagellates containing chlorophyll; often considered unicellular algae Cryptophyceae, class Cryptophyceaemotile usually brownish-green protozoa-like algae Sporozoa, class Sporozoastrictly parasitic protozoans that are usually immobile; includes plasmodia and coccidia and piroplasms and malaria parasites Telosporidia, subclass Telosporidiaparasitic sporozoans that form spores containing one or more infective sporozoites Acnidosporidia, subclass Acnidosporidiaa subclass of Sporozoa Cnidosporidia, subclass Cnidosporidiasingle-host parasites of lower vertebrates and invertebrates Ascidiaceae, class Ascidiaceaesometimes classified as an order: sea squirts Thaliacea, class Thaliaceasmall class of free-swimming tunicates; sometimes classified as an order Larvacea, class Larvaceasmall free-swimming tunicates; sometimes classified as an order Agnatha, superclass Agnathasuperclass of eel-shaped chordates lacking jaws and pelvic fins: lampreys; hagfishes; some extinct forms Gnathostomata, superclass Gnathostomatacomprising all vertebrates with upper and lower jaws Placodermi, class Placodermiextinct group of bony-plated fishes with primitive jaws Chondrichthyes, class Chondrichthyescartilaginous fishes Holocephali, subclass Holocephalichimaeras and extinct forms Elasmobranchii, Selachii, subclass Elasmobranchii, subclass Selachiisharks; rays; dogfishes; skates Aves, class Aves(ornithology) the class of birds Archaeornithes, subclass Archaeornithesprimitive reptile-like fossil birds of the Jurassic or early Cretaceous amphibia, class Amphibiathe class of vertebrates that live on land but breed in water; frogs; toads; newts; salamanders; caecilians Reptilia, class Reptiliaclass of cold-blooded air-breathing vertebrates with completely ossified skeleton and a body usually covered with scales or horny plates; once the dominant land animals Anapsida, subclass Anapsidaoldest known reptiles; turtles and extinct Permian forms Lepidosauria, subclass Lepidosauriadiapsid reptiles: lizards; snakes; tuataras Archosauria, subclass Archosauriaa large subclass of diapsid reptiles including: crocodiles; alligators; dinosaurs; pterosaurs; plesiosaurs; ichthyosaurs; thecodonts Synapsida, subclass Synapsidaextinct reptiles of the Permian to Jurassic considered ancestral to mammals Chelicerata, superclass Chelicerataspiders; scorpions; horseshoe crabs Arachnida, class Arachnidaa large class of arthropods including spiders and ticks and scorpions and daddy longlegs; have four pairs of walking legs and no wings superclass Myriapodaused in some classifications to encompass the millipedes (Diplopoda) and centipedes (Chilopoda); formerly a large taxon including also the Pauropoda and Symphyla; the term Myriapoda now usually used synonymously with Diplopoda and limited to the millipedes Pauropoda, class Pauropodaan obscure class of minute arthropods with branched antennae and 8 to 10 pairs of legs Symphyla, class Symphylasmall class of minute arthropods; unimportant except for the garden centipede Tardigrada, class Tardigradain some classifications considered a separate phylum: microscopic arachnid-like invertebrates living in water or damp moss having 4 pairs of legs and instead of a mouth a pair of stylets or needlelike piercing organs connected with the pharynx Chilopoda, class Chilopodaarthropods having the trunk composed of numerous somites each bearing one pair of legs: centipedes Diplopoda, Myriapoda, class Diplopoda, class Myriapodaarthropods having the body composed of numerous double somites each with two pairs of legs: millipedes Mammalia, class Mammaliawarm-blooded vertebrates characterized by mammary glands in the female Prototheria, subclass Prototheriaechidnas; platypus Pantotheria, subclass Pantotheriageneralized extinct mammals widespread during the Jurassic; commonly conceded to be ancestral to marsupial and placental mammals Metatheria, subclass Metatheriapouched animals Eutheria, subclass Eutheriaall mammals except monotremes and marsupials Hyalospongiae, class Hyalospongiaesponges with siliceous spicules that have six rays; choanocytes are restricted to finger-shaped chambers Scyphozoa, class Scyphozoacoelenterates in which the polyp stage is absent or at least inconspicuous: jellyfishes Hydrozoa, class Hydrozoacoelenterates typically having alternation of generations; hydroid phase is usually colonial giving rise to the medusoid phase by budding: hydras and jellyfishes Actinozoa, Anthozoa, class Actinozoa, class Anthozoaa large class of sedentary marine coelenterates that includes sea anemones and corals; the medusoid phase is entirely suppressed Nuda, class Nudactenophores lacking tentacles; comprises one genus: beroe Tentaculata, class Tentaculatactenophores have retractile tentacles Turbellaria, class Turbellariafree-living flatworms Trematoda, class Trematodaparasitic flatworms (including flukes) Cestoda, class Cestodatapeworms Aphasmidia, class Aphasmidiaone of two subgroups of Nematoda used in some classification systems Phasmidia, class Phasmidiaone of two subgroups of Nematoda used in some classification systems Archiannelida, class Archiannelidaa class of Annelida Oligochaeta, class Oligochaetaearthworms Polychaeta, class Polychaetamarine annelid worms Hirudinea, class Hirudineahermaphroditic aquatic or terrestrial or parasitic annelids Scaphopoda, class Scaphopodasmall class of bilaterally symmetrical marine forms comprising the tooth shells Gasteropoda, Gastropoda, class Gasteropoda, class Gastropodasnails and slugs and their relatives Opisthobranchia, subclass Opisthobranchiagastropods having the gills when present posterior to the heart and having no operculum: includes sea slugs; sea butterflies; sea hares Amphineura, subclass Amphineuraa class of Gastropoda Polyplacophora, class Polyplacophorasmall class of marine mollusks comprising the chitons; sometimes considered an order of the subclass Amphineura Bivalvia, Lamellibranchia, class Bivalvia, class Lamellibranchia, class Pelecypodaoysters; clams; scallops; mussels Cephalopoda, class Cephalopodaoctopuses; squids; cuttlefish; pearly nautilus Dibranchia, Dibranchiata, subclass Dibranchia, subclass Dibranchiatacomprising all living cephalopods except the family Nautilidae: the orders Octopoda (octopuses) and Decapoda (squids and cuttlefish) Crustacea, class Crustaceaclass of mandibulate arthropods including: lobsters; crabs; shrimps; woodlice; barnacles; decapods; water fleas Malacostraca, subclass Malacostracalargest subclass of Crustacea including most of the well-known marine, freshwater, and terrestrial crustaceans: crabs; lobsters; shrimps; sow bugs; beach flies Entomostraca, subclass Entomostracain some older classifications includes the Branchiopoda and Copepoda and Ostracoda and Cirripedia; no longer in technical use Branchiopoda, subclass Branchiopodaprimitive aquatic mainly freshwater crustaceans: fairy shrimps; brine shrimps; tadpole shrimps; can shrimps; water fleas Copepoda, subclass Copepodaminute planktonic or parasitic crustaceans Ostracoda, subclass Ostracodaseed shrimps Cirripedia, subclass Cirripediabarnacles Onychophora, class Onychophoraenigmatic small elongated wormlike terrestrial invertebrates of damp dark habitats in warm regions; distinct from the phylum Annelida; resemble slugs with legs and are sometimes described as the missing link between arthropods and annelids Hexapoda, Insecta, class Hexapoda, class Insectainsects; about five-sixths of all known animal species Exopterygota, Hemimetabola, subclass Exopterygotasubclass of insects characterized by gradual and usually incomplete metamorphosis Asteroidea, class Asteroideasea stars Ophiuroidea, class Ophiuroideabrittle stars and basket stars Ophiurida, subclass Ophiuridabrittle stars Euryalida, subclass Euryalidabasket stars Echinoidea, class Echinoideasea urchins and sand dollars Crinoidea, class Crinoideasea lilies Holothuroidea, class Holothuroideaclass of echinoderms including the sea cucumbers Hominoidea, superfamily Hominoideaanthropoid apes and human beings Channidae, class Channidaesnakeheads Osteichthyes, class Osteichthyesa class of fish having a skeleton composed of bone in addition to cartilage Crossopterygii, subclass Crossopterygiifishes having paired fins resembling limbs and regarded as ancestral to amphibians Dipnoi, subclass Dipnoibony fishes of the southern hemisphere that breathe by a modified air bladder as well as gills; sometimes classified as an order of Crossopterygii Teleostei, subclass Teleosteilarge diverse group of bony fishes; includes most living species Anthoceropsida, class Anthoceropsidahornworts: in some classification systems included in the class Hepaticopsida Bryopsida, Musci, class Bryopsida, class Muscitrue mosses: bryophytes having leafy rather than thalloid gametophytes: comprises orders Andreaeales; Bryales; Dicranales; Eubryales; Sphagnales Hepaticae, Hepaticopsida, class Hepaticae, class Hepaticopsidaliverworts: comprises orders Anthocerotales; Jungermanniales; Marchantiales; Sphaerocarpales Gymnospermae, Gymnospermophyta, class Gymnospermae, division Gymnospermophytaplants having naked seeds not enclosed in an ovary; in some systems considered a class (Gymnospermae) and in others a division (Gymnospermophyta); comprises three subdivisions (or classes): Cycadophytina (class Cycadopsida) and Gnetophytina (class Gnetopsida) and Coniferophytina (class Coniferopsida); in some classifications the Coniferophytina are divided into three groups: Pinophytina (class Pinopsida) and Ginkgophytina (class Ginkgopsida) and Taxophytina (class Taxopsida) Gnetophyta, Gnetophytina, Gnetopsida, class Gnetopsida, subdivision Gnetophytinagymnospermous flowering plants; supposed link between conifers and angiosperms; in some systems classified as a class (Gnetopsida) and in others as a subdivision (Gnetophytina or Gnetophyta) Cycadophyta, Cycadophytina, Cycadopsida, class Cycadopsida, subdivision Cycadophyta, subdivision Cycadophytinapalmlike gymnosperms: includes the surviving order Cycadales and several extinct orders; possibly not a natural group; in some systems considered a class (Cycadopsida) and in others a subdivision (Cycadophytina or Cycadophyta) Pteridospermopsida, class Pteridospermopsidaextinct gymnosperms most of Carboniferous to Jurassic: seed ferns and allies Coniferophyta, Coniferophytina, Coniferopsida, class Coniferopsida, subdivision Coniferophytinacone-bearing gymnosperms dating from the Carboniferous period; most are substantial trees; includes the classes Pinopsida (subdivision Pinophytina) and Ginkgopsida (subdivision Ginkgophytina) and Taxopsida (subdivision Taxophytina) which in turn include the surviving orders Coniferales and Taxales (yews) and sometimes Ginkgoales as well as extinct orders such as Cordaitales (of the Carboniferous and Permian) Pinophytina, Pinopsida, class Pinopsida, subdivision Pinophytinamost conifers: in some systems classified as a class (Pinopsida) and in others as a subdivision (Pinophytina); used in some classifications for one of five subdivisions of Gymnospermophyta Taxophytina, Taxopsida, class Taxopsida, subdivision Taxophytinayews: in some systems classified as a class (Taxopsida) and in others as a subdivision (Taxophytina) used in some classifications for one of five subdivisions of Gymnospermophyta Ginkgophytina, Ginkgopsida, class Ginkgophytina, class Ginkgopsida, subdivision Ginkgophyta, subdivision Ginkgophytinaginkgos: in some systems classified as a class and in others as a subdivision; used in some classifications for one of five subdivisions of Gymnospermophyta Angiospermae, Anthophyta, Magnoliophyta, class Angiospermae, division Anthophyta, division Magnoliophytacomprising flowering plants that produce seeds enclosed in an ovary; in some systems considered a class (Angiospermae) and in others a division (Magnoliophyta or Anthophyta) Dicotyledonae, Dicotyledones, Magnoliopsida, class Dicotyledonae, class Dicotyledones, class Magnoliopsidacomprising seed plants that produce an embryo with paired cotyledons and net-veined leaves; divided into six (not always well distinguished) subclasses (or superorders): Magnoliidae and Hamamelidae (considered primitive); Caryophyllidae (an early and distinctive offshoot); and three more or less advanced groups: Dilleniidae; Rosidae; Asteridae Magnoliidae, ranalian complex, subclass Magnoliidaea group of families of trees and shrubs and herbs having well-developed perianths and apocarpous ovaries and generally regarded as the most primitive extant flowering plants; contains 36 families including Magnoliaceae and Ranunculaceae; sometimes classified as a superorder Liliopsida, Monocotyledonae, Monocotyledones, class Liliopsida, class Monocotyledonae, class Monocotyledonescomprising seed plants that produce an embryo with a single cotyledon and parallel-veined leaves: includes grasses and lilies and palms and orchids; divided into four subclasses or superorders: Alismatidae; Arecidae; Commelinidae; and Liliidae Alismatidae, subclass Alismatidaeone of four subclasses or superorders of Monocotyledones; comprises about 500 species in 14 families of aquatic and semiaquatic herbs Arecidae, subclass Arecidaeone of four subclasses or superorder of Monocotyledones; comprises about 6400 species in 5 families of trees and shrubs and terrestrial herbs and a few free-floating aquatics including: Palmae; Araceae; Pandanaceae and Lemnaceae Commelinidae, subclass Commelinidaeone of four subclasses or superorders of Monocotyledones; comprises about 19,000 species in 25 families of mostly terrestrial herbs especially of moist places including: Cyperaceae; Gramineae; Bromeliaceae; and Zingiberaceae Caryophyllidae, subclass Caryophyllidaea group of families of mostly flowers having basal or central placentation and trinucleate pollen (binucleate pollen is commoner in flowering plants); contains 14 families including: Caryophyllaceae (carnations and pinks); Aizoaceae; Amaranthaceae; Batidaceae; Chenopodiaceae; Cactaceae (order Opuntiales); Nyctaginaceae; Phytolaccaceae; corresponds approximately to order Caryophyllales; sometimes classified as a superorder Asteridae, subclass Asteridaea group of mostly sympetalous herbs and some trees and shrubs mostly with 2 fused carpels; contains 43 families including Campanulales; Solanaceae; Scrophulariaceae; Labiatae; Verbenaceae; Rubiaceae; Compositae; sometimes classified as a superorder Rosidae, subclass Rosidaea group of trees and shrubs and herbs mostly with polypetalous flowers; contains 108 families including Rosaceae; Crassulaceae; Myrtaceae; Melastomaceae; Euphorbiaceae; Umbelliferae Hamamelidae, subclass Hamamelidaea group of chiefly woody plants considered among the most primitive of angiosperms; perianth poorly developed or lacking; flowers often unisexual and often in catkins and often wind pollinated; contains 23 families including the Betulaceae and Fagaceae (includes the Amentiferae); sometimes classified as a superorder Dilleniidae, subclass Dilleniidaea group of families of more or less advanced trees and shrubs and herbs having either polypetalous or gamopetalous corollas and often with ovules attached to the walls of the ovary; contains 69 families including Ericaceae and Cruciferae and Malvaceae; sometimes classified as a superorder Liliidae, subclass Liliidaeone of four subclasses or superorders of Monocotyledones; comprises 17 families including: Liliaceae; Alliaceae; Amaryllidaceae; Iridaceae; Orchidaceae; Trilliaceae Zygomycetes, class Zygomycetesclass of fungi coextensive with subdivision Zygomycota Myxomycetes, class Myxomycetesthe class of true slime molds; essentially equivalent to the division Myxomycota Acrasiomycetes, class Acrasiomycetescellular slime molds; in some classifications placed in kingdom Protoctista Oomycetes, class Oomycetesnonphotosynthetic fungi that resemble algae and that reproduce by forming oospores; sometimes classified as protoctists Chytridiomycetes, class Chytridiomycetesa class of mostly aquatic fungi; saprophytic or parasitic on algae or fungi or plants Eumycetes, class Eumycetescategory used in some classifications: coextensive with division Eumycota Deuteromycetes, class Deuteromycetesform class; coextensive with subdivision Deuteromycota Basidiomycetes, class Basidiomyceteslarge class of higher fungi coextensive with subdivision Basidiomycota Homobasidiomycetes, subclass Homobasidiomycetescategory used in some classification systems for various basidiomycetous fungi including e.g. mushrooms and puffballs which are usually placed in the classes Gasteromycetes and Hymenomycetes Heterobasidiomycetes, subclass Heterobasidiomycetescategory used in some classification systems for various basidiomycetous fungi including rusts and smuts Hymenomycetes, class Hymenomycetesused in some classifications; usually coextensive with order Agaricales: mushrooms; toadstools; agarics; bracket fungi Ascomycetes, class Ascomyceteslarge class of higher fungi coextensive with division Ascomycota: sac fungi Euascomycetes, subclass Euascomycetescategory not used in many classification systems Hemiascomycetes, class Hemiascomycetesclass of fungi in which no ascocarps are formed: yeasts and some plant parasites Plectomycetes, class Plectomycetesclass of fungi in which the fruiting body is a cleistothecium (it releases spores only on decay or disintegration) Pyrenomycetes, class Pyrenomycetesclass of fungi in which the fruiting body is a perithecium; includes powdery mildews and ergot and Neurospora Discomycetes, subclass Discomycetesa large and taxonomically difficult group of Ascomycetes in which the fleshy fruiting body is disklike or cup-shaped Gasteromycetes, Gastromycetes, class Gasteromycetes, class Gastromycetesfungi in which the hymenium is enclosed until after spores have matured: puffballs; earth stars; stinkhorn fungi Tiliomycetes, class Tiliomycetescategory used in some systems to comprise the two orders Ustilaginales (smuts) and Uredinales (rusts) Filicinae, Filicopsida, class Filicinae, class Filicopsidaferns Psilopsida, Psilotatae, class Psilopsida, class Psilotataewhisk ferns; comprising the family Psilotaceae or Psilotatae: vascular plants with no roots, partial if any leaf differentiation, and rudimentary spore sacs Equisetatae, Sphenopsida, class Equisetatae, class Sphenopsidahorsetails and related forms Lycopodiate, Lycopsida, class Lycopodiate, class Lycopsidaclub mosses and related forms: includes Lycopodiales; Isoetales; Selaginellales; and extinct Lepidodendrales; sometimes considered a subdivision of Tracheophyta Lycopodineae, class Lycopodineaealternative designation for the class Lycopsida taxon, taxonomic category, taxonomic group animal or plant group having natural relations 6v arrange or order by classes or categories 2Syn|Hypo|Hyper assort, classify, separate, sort, sort out unitise, unitize separate or classify into units catalog, cataloguemake an itemized list or catalog of; classify isolateseparate (experiences) from the emotions relating to them referthink of, regard, or classify under a subsuming principle or with a general group or in relation to another reclassifyclassify anew, change the previous classification sizesort according to size dichotomise, dichotomizedivide into two opposing groups or kinds pigeonhole, stamp, stereotypetreat or classify according to a mental stereotype grouparrange into a group or groups gradedetermine the grade of or assign a grade to count, numberput into a group regroupreorganize into new groups bracketclassify or group chunk, collocate, lumpgroup or chunk together in a certain order or place side by side batchbatch together; assemble or process as a batch categorise, categorize place into or assign to a category n education imparted in a series of lessons or meetings 3flirting is not unknown in college classes Syn|Hypo|Hyper course, course of instruction, course of study adult education a course (via lectures or correspondence) for adults who are not otherwise engaged in formal study art classa class in which you learn to draw or paint childbirth-preparation classa course that teaches pregnant women to use breathing and concentration and exercise techniques to use during labor correspondence coursea course offered (by mail) by a correspondence school course of lecturesa series of lectures dealing with a subject directed studya course of study that is supervised and controlled by a specialist in the subject elective, elective coursea course that the student can select from among alternatives extension coursea course offered as part of an extension service home studya course of study carried out at home rather than in a classroom industrial artsa course in the methods of using tools and machinery as taught in secondary schools and technical schools orientation, orientation coursea course introducing a new situation or environment propaedeutic, propaedeuticsa course that provides an introduction to an art or science (or to more advanced study generally) refresher, refresher coursea course that reviews and updates a topic for those who have not kept abreast of developments required coursea course that all students are required to take seminara course offered for a small group of advanced students shop, shop classa course of instruction in a trade (as carpentry or electricity) workshopa brief intensive course for a small group; emphasizes problem solving life classan art class using a live human model didactics, education, educational activity, instruction, pedagogy, teaching the activities of educating or instructing; activities that impart knowledge or skill n elegance in dress or behavior 4she has a lot of class Hyper elegance a refined quality of gracefulness and good taste n a league ranked by quality he played baseball in class D for two years Syn|Hyper division conference, league an association of sports teams that organizes matches for its members |
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英语词典包含147318条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。