英语词汇“invertebrate”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

nadj

An invertebrate is an animal without a backbone. Invertebrate animals include fruit flies and sea sponges.

Your backbone allows you to stand up straight, and it also allows you to be grouped with the other vertebrates: animals with backbones. Invertebrates are the opposite: they have no backbone. These are the two major groups of animals. Also, this word is used for people who are spineless in the sense of having no courage. You could say a coward acts in an invertebrate way. Whether it's a backbone-free animal or a courage-free person, all invertebrates lack spines.

WORD FAMILY

invertebrate: invertebrates+/vertebrate: invertebrate, vertebrates

USAGE EXAMPLES

Glenn Frei, a keeper of invertebrates who works closely with Miller and Mills, also said he supported the title.

Washington Times(Dec 02, 2016)

In 1986, construction of LACMA’s Japanese Pavilion was shut down for six weeks when excavation uncovered a major deposit of invertebrate fossils.

Los Angeles Times(Nov 30, 2016)

The scientists looked for evidence of virus infection in a group of animals called invertebrates, which includes insects and spiders.

BBC(Nov 24, 2016)

1n any animal lacking a backbone or notochord; the term is not used as a scientific classification

Hypo|Hyper

arthropod

invertebrate having jointed limbs and a segmented body with an exoskeleton made of chitin

zoophyte

any of various invertebrate animals resembling a plant such as a sea anemone or coral or sponge

parazoan, poriferan, sponge

primitive multicellular marine animal whose porous body is supported by a fibrous skeletal framework; usually occurs in sessile colonies

cnidarian, coelenterate

radially symmetrical animals having saclike bodies with only one opening and tentacles with stinging structures; they occur in polyp and medusa forms

comb jelly, ctenophore

biradially symmetrical hermaphroditic solitary marine animals resembling jellyfishes having for locomotion eight rows of cilia arranged like teeth in a comb

worm

any of numerous relatively small elongated soft-bodied animals especially of the phyla Annelida and Chaetognatha and Nematoda and Nemertea and Platyhelminthes; also many insect larvae

borer, woodborer

any of various insects or larvae or mollusks that bore into wood

rotifer

minute aquatic multicellular organisms having a ciliated wheel-like organ for feeding and locomotion; constituents of freshwater plankton

mollusc, mollusk, shellfish

invertebrate having a soft unsegmented body usually enclosed in a shell

phoronid

hermaphrodite wormlike animal living in mud of the sea bottom

bryozoan, moss animal, polyzoan, sea mat, sea moss

sessile aquatic animal forming mossy colonies of small polyps each having a curved or circular ridge bearing tentacles; attach to stones or seaweed and reproduce by budding

ectoproct

sessile mossy aquatic animal having the anus of the polyp outside the crown of tentacles

entoproct

any of various moss-like aquatic animals usually forming branching colonies; each polyp having a both mouth and anus within a closed ring of tentacles

Symbion pandora

only known species of Cycliophora; lives symbiotically attached to a lobster's lip by an adhesive disk and feeding by means of a hairy mouth ring; its complex life cycle includes asexual and sexual phases

brachiopod, lamp shell, lampshell

marine animal with bivalve shell having a pair of arms bearing tentacles for capturing food; found worldwide

peanut worm, sipunculid

small unsegmented marine worm that when disturbed retracts its anterior portion into the body giving the appearance of a peanut

echinoderm

marine invertebrates with tube feet and five-part radially symmetrical bodies

trilobite

an extinct arthropod that was abundant in Paleozoic times; had an exoskeleton divided into three parts

arachnid, arachnoid

air-breathing arthropods characterized by simple eyes and four pairs of legs

myriapod

general term for any terrestrial arthropod having an elongated body composed of many similar segments: e.g. centipedes and millipedes

Scutigerella immaculata, garden centipede, garden symphilid, symphilid

minute arthropod often infesting the underground parts of truck-garden and greenhouse crops

tardigrade

an arthropod of the division Tardigrada

centipede

chiefly nocturnal predacious arthropod having a flattened body of 15 to 173 segments each with a pair of legs, the foremost pair being modified as prehensors

millepede, milliped, millipede

any of numerous herbivorous nonpoisonous arthropods having a cylindrical body of 20 to 100 or more segments most with two pairs of legs

pycnogonid, sea spider

any of various small spiderlike marine arthropods having small thin bodies and long slender legs

Merostomata, class Merostomata

used in some classifications; includes the orders Xiphosura and Eurypterida

Limulus polyphemus, Xiphosurus polyphemus, horseshoe crab, king crab

large marine arthropod of the Atlantic coast of North America having a domed carapace that is shaped like a horseshoe and a stiff pointed tail; a living fossil related to the wood louse

Asian horseshoe crab

horseshoe crab of the coast of eastern Asia

eurypterid

large extinct scorpion-like arthropod considered related to horseshoe crabs

pentastomid, tongue worm

wormlike arthropod having two pairs of hooks at the sides of the mouth; parasitic in nasal sinuses of mammals

glass sponge

a siliceous sponge (with glassy spicules) of the class Hyalospongiae

polyp

one of two forms that coelenterates take (e.g. a hydra or coral): usually sedentary with a hollow cylindrical body usually with a ring of tentacles around the mouth

medusa, medusan, medusoid

one of two forms that coelenterates take: it is the free-swimming sexual phase in the life cycle of a coelenterate; in this phase it has a gelatinous umbrella-shaped body and tentacles

jellyfish

any of numerous usually marine and free-swimming coelenterates that constitute the sexually reproductive forms of hydrozoans and scyphozoans

scyphozoan

any of various usually free-swimming marine coelenterates having a gelatinous medusoid stage as the dominant phase of its life cycle

hydroid, hydrozoan

colonial coelenterates having the polyp phase dominant

actinozoan, anthozoan

sessile marine coelenterates including solitary and colonial polyps; the medusoid phase is entirely suppressed

beroe

delicately iridescent thimble-shaped ctenophores

platyctenean

ctenophore have long tentacles and flattened body

sea gooseberry

ctenophore having a rounded body with longitudinal rows of cilia

Cestum veneris, Venus's girdle

ctenophore having a ribbon-shaped iridescent gelatinous body

helminth, parasitic worm

worm that is parasitic on the intestines of vertebrates especially roundworms and tapeworms and flukes

woodworm

a larva of a woodborer

acanthocephalan, spiny-headed worm

any of various worms living parasitically in intestines of vertebrates having a retractile proboscis covered with many hooked spines

arrowworm, chaetognath

any worm of the Chaetognatha; transparent marine worm with horizontal lateral and caudal fins and a row of movable curved spines at each side of the mouth

flatworm, platyhelminth

parasitic or free-living worms having a flattened body

nemertean, nemertine, proboscis worm, ribbon worm

soft unsegmented marine worms that have a threadlike proboscis and the ability to stretch and contract

beard worm, pogonophoran

slender animal with tentacles and a tubelike outer covering; lives on the deep ocean bottom

nematode, nematode worm, roundworm

unsegmented worms with elongated rounded body pointed at both ends; mostly free-living but some are parasitic

annelid, annelid worm, segmented worm

worms with cylindrical bodies segmented both internally and externally

scaphopod

burrowing marine mollusk

gastropod, univalve

a class of mollusks typically having a one-piece coiled shell and flattened muscular foot with a head bearing stalked eyes

chiton, coat-of-mail shell, polyplacophore, sea cradle

primitive elongated bilaterally symmetrical marine mollusk having a mantle covered with eight calcareous plates

bivalve, lamellibranch, pelecypod

marine or freshwater mollusks having a soft body with platelike gills enclosed within two shells hinged together

cephalopod, cephalopod mollusk

marine mollusk characterized by well-developed head and eyes and sucker-bearing tentacles

crustacean

any mainly aquatic arthropod usually having a segmented body and chitinous exoskeleton

onychophoran, peripatus, velvet worm

any of numerous velvety-skinned wormlike carnivorous animals common in tropical forests having characteristics of both arthropods and annelid worms

insect

small air-breathing arthropod

instar

an insect or other arthropod between molts

sea star, starfish

echinoderms characterized by five arms extending from a central disk

brittle star, brittle-star, serpent star

an animal resembling a starfish with fragile whiplike arms radiating from a small central disc

basket fish, basket star

any starfish-like animal of the genera Euryale or Astrophyton or Gorgonocephalus having slender complexly branched interlacing arms radiating from a central disc

sea urchin

shallow-water echinoderms having soft bodies enclosed in thin spiny globular shells

crinoid

primitive echinoderms having five or more feathery arms radiating from a central disk

holothurian, sea cucumber

echinoderm having a flexible sausage-shaped body, tentacles surrounding the mouth and tube feet; free-living mud feeders

animal, animate being, beast, brute, creature, fauna

a living organism characterized by voluntary movement

2adj lacking a backbone or spinal column

worms are an example of invertebrate animals

Syn|Ant

spineless

vertebrate

having a backbone or spinal column

单词	invertebrate
释义	invertebrate (once / 10894 pages) nadj An invertebrate is an animal without a backbone. Invertebrate animals include fruit flies and sea sponges. Your backbone allows you to stand up straight, and it also allows you to be grouped with the other vertebrates: animals with backbones. Invertebrates are the opposite: they have no backbone. These are the two major groups of animals. Also, this word is used for people who are spineless in the sense of having no courage. You could say a coward acts in an invertebrate way. Whether it's a backbone-free animal or a courage-free person, all invertebrates lack spines. WORD FAMILY invertebrate: invertebrates+/vertebrate: invertebrate, vertebrates USAGE EXAMPLES Glenn Frei, a keeper of invertebrates who works closely with Miller and Mills, also said he supported the title. Washington Times(Dec 02, 2016) In 1986, construction of LACMA’s Japanese Pavilion was shut down for six weeks when excavation uncovered a major deposit of invertebrate fossils. Los Angeles Times(Nov 30, 2016) The scientists looked for evidence of virus infection in a group of animals called invertebrates, which includes insects and spiders. BBC(Nov 24, 2016) 1n any animal lacking a backbone or notochord; the term is not used as a scientific classification Hypo\|Hyper arthropod invertebrate having jointed limbs and a segmented body with an exoskeleton made of chitin zoophyte any of various invertebrate animals resembling a plant such as a sea anemone or coral or sponge parazoan, poriferan, sponge primitive multicellular marine animal whose porous body is supported by a fibrous skeletal framework; usually occurs in sessile colonies cnidarian, coelenterate radially symmetrical animals having saclike bodies with only one opening and tentacles with stinging structures; they occur in polyp and medusa forms comb jelly, ctenophore biradially symmetrical hermaphroditic solitary marine animals resembling jellyfishes having for locomotion eight rows of cilia arranged like teeth in a comb worm any of numerous relatively small elongated soft-bodied animals especially of the phyla Annelida and Chaetognatha and Nematoda and Nemertea and Platyhelminthes; also many insect larvae borer, woodborer any of various insects or larvae or mollusks that bore into wood rotifer minute aquatic multicellular organisms having a ciliated wheel-like organ for feeding and locomotion; constituents of freshwater plankton mollusc, mollusk, shellfish invertebrate having a soft unsegmented body usually enclosed in a shell phoronid hermaphrodite wormlike animal living in mud of the sea bottom bryozoan, moss animal, polyzoan, sea mat, sea moss sessile aquatic animal forming mossy colonies of small polyps each having a curved or circular ridge bearing tentacles; attach to stones or seaweed and reproduce by budding ectoproct sessile mossy aquatic animal having the anus of the polyp outside the crown of tentacles entoproct any of various moss-like aquatic animals usually forming branching colonies; each polyp having a both mouth and anus within a closed ring of tentacles Symbion pandora only known species of Cycliophora; lives symbiotically attached to a lobster's lip by an adhesive disk and feeding by means of a hairy mouth ring; its complex life cycle includes asexual and sexual phases brachiopod, lamp shell, lampshell marine animal with bivalve shell having a pair of arms bearing tentacles for capturing food; found worldwide peanut worm, sipunculid small unsegmented marine worm that when disturbed retracts its anterior portion into the body giving the appearance of a peanut echinoderm marine invertebrates with tube feet and five-part radially symmetrical bodies trilobite an extinct arthropod that was abundant in Paleozoic times; had an exoskeleton divided into three parts arachnid, arachnoid air-breathing arthropods characterized by simple eyes and four pairs of legs myriapod general term for any terrestrial arthropod having an elongated body composed of many similar segments: e.g. centipedes and millipedes Scutigerella immaculata, garden centipede, garden symphilid, symphilid minute arthropod often infesting the underground parts of truck-garden and greenhouse crops tardigrade an arthropod of the division Tardigrada centipede chiefly nocturnal predacious arthropod having a flattened body of 15 to 173 segments each with a pair of legs, the foremost pair being modified as prehensors millepede, milliped, millipede any of numerous herbivorous nonpoisonous arthropods having a cylindrical body of 20 to 100 or more segments most with two pairs of legs pycnogonid, sea spider any of various small spiderlike marine arthropods having small thin bodies and long slender legs Merostomata, class Merostomata used in some classifications; includes the orders Xiphosura and Eurypterida Limulus polyphemus, Xiphosurus polyphemus, horseshoe crab, king crab large marine arthropod of the Atlantic coast of North America having a domed carapace that is shaped like a horseshoe and a stiff pointed tail; a living fossil related to the wood louse Asian horseshoe crab horseshoe crab of the coast of eastern Asia eurypterid large extinct scorpion-like arthropod considered related to horseshoe crabs pentastomid, tongue worm wormlike arthropod having two pairs of hooks at the sides of the mouth; parasitic in nasal sinuses of mammals glass sponge a siliceous sponge (with glassy spicules) of the class Hyalospongiae polyp one of two forms that coelenterates take (e.g. a hydra or coral): usually sedentary with a hollow cylindrical body usually with a ring of tentacles around the mouth medusa, medusan, medusoid one of two forms that coelenterates take: it is the free-swimming sexual phase in the life cycle of a coelenterate; in this phase it has a gelatinous umbrella-shaped body and tentacles jellyfish any of numerous usually marine and free-swimming coelenterates that constitute the sexually reproductive forms of hydrozoans and scyphozoans scyphozoan any of various usually free-swimming marine coelenterates having a gelatinous medusoid stage as the dominant phase of its life cycle hydroid, hydrozoan colonial coelenterates having the polyp phase dominant actinozoan, anthozoan sessile marine coelenterates including solitary and colonial polyps; the medusoid phase is entirely suppressed beroe delicately iridescent thimble-shaped ctenophores platyctenean ctenophore have long tentacles and flattened body sea gooseberry ctenophore having a rounded body with longitudinal rows of cilia Cestum veneris, Venus's girdle ctenophore having a ribbon-shaped iridescent gelatinous body helminth, parasitic worm worm that is parasitic on the intestines of vertebrates especially roundworms and tapeworms and flukes woodworm a larva of a woodborer acanthocephalan, spiny-headed worm any of various worms living parasitically in intestines of vertebrates having a retractile proboscis covered with many hooked spines arrowworm, chaetognath any worm of the Chaetognatha; transparent marine worm with horizontal lateral and caudal fins and a row of movable curved spines at each side of the mouth flatworm, platyhelminth parasitic or free-living worms having a flattened body nemertean, nemertine, proboscis worm, ribbon worm soft unsegmented marine worms that have a threadlike proboscis and the ability to stretch and contract beard worm, pogonophoran slender animal with tentacles and a tubelike outer covering; lives on the deep ocean bottom nematode, nematode worm, roundworm unsegmented worms with elongated rounded body pointed at both ends; mostly free-living but some are parasitic annelid, annelid worm, segmented worm worms with cylindrical bodies segmented both internally and externally scaphopod burrowing marine mollusk gastropod, univalve a class of mollusks typically having a one-piece coiled shell and flattened muscular foot with a head bearing stalked eyes chiton, coat-of-mail shell, polyplacophore, sea cradle primitive elongated bilaterally symmetrical marine mollusk having a mantle covered with eight calcareous plates bivalve, lamellibranch, pelecypod marine or freshwater mollusks having a soft body with platelike gills enclosed within two shells hinged together cephalopod, cephalopod mollusk marine mollusk characterized by well-developed head and eyes and sucker-bearing tentacles crustacean any mainly aquatic arthropod usually having a segmented body and chitinous exoskeleton onychophoran, peripatus, velvet worm any of numerous velvety-skinned wormlike carnivorous animals common in tropical forests having characteristics of both arthropods and annelid worms insect small air-breathing arthropod instar an insect or other arthropod between molts sea star, starfish echinoderms characterized by five arms extending from a central disk brittle star, brittle-star, serpent star an animal resembling a starfish with fragile whiplike arms radiating from a small central disc basket fish, basket star any starfish-like animal of the genera Euryale or Astrophyton or Gorgonocephalus having slender complexly branched interlacing arms radiating from a central disc sea urchin shallow-water echinoderms having soft bodies enclosed in thin spiny globular shells crinoid primitive echinoderms having five or more feathery arms radiating from a central disk holothurian, sea cucumber echinoderm having a flexible sausage-shaped body, tentacles surrounding the mouth and tube feet; free-living mud feeders animal, animate being, beast, brute, creature, fauna a living organism characterized by voluntary movement 2adj lacking a backbone or spinal column worms are an example of invertebrate animals Syn\|Ant spineless vertebrate having a backbone or spinal column
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