| 释义 |
crayfish
cray·fish C0731200 (krā′fĭsh′) also craw·fish (krô′-)n. pl. crayfish or cray·fish·es also crawfish or craw·fish·es 1. Any of various freshwater crustaceans of the families Astacidae and Cambaridae of the Northern Hemisphere and the family Parastacidae of the Southern Hemisphere, resembling a lobster but considerably smaller. Also called mudbug; also called regionally crawdad.2. See spiny lobster.
[By folk etymology from Middle English crevise, from Old French crevice, perhaps from Old High German krebiz, edible crustacean; see gerbh- in Indo-European roots.]Word History: The crayfish, also known as the crawfish, owes its name to a misunderstanding. The actual source of the word may be the Old High German word krebiz, "edible crustacean," or a word related to it. From this Germanic source came Old French crevice, which when taken into English became crevise (first recorded in a document written in 1311-1312). In Old French and Middle English these words designated the crayfish. People began to pronounce and spell the last part of this word as if it were fish, the first fish spelling being recorded in 1555. Because of a variation in Anglo-Norman pronunciation, two forms of the word have come down to Modern English: crayfish and crawfish.crayfish (ˈkreɪˌfɪʃ) or crawfishn, pl -fish or -fishes1. (Animals) any freshwater decapod crustacean of the genera Astacus and Cambarus, resembling a small lobster2. (Animals) any of various similar crustaceans, esp the spiny lobster[C14: cray, by folk etymology, from Old French crevice crab, from Old High German krebiz + fish]cray•fish (ˈkreɪˌfɪʃ) also crawfish
n., pl. (esp. collectively) -fish, (esp. for kinds or species) -fish•es. 1. Also called crawdad , crawdaddy. any of various mainly freshwater decapod crustaceans, esp. of the genera Astacus and Cambarus, resembling small lobsters. 2. (not in technical use) the spiny lobster. [1350–1400; alter. (by folk etym.) of Middle English crevis < Middle French crevice < Old High German krebiz crab1] Thesaurus| Noun | 1. |  crayfish - warm-water lobsters without claws; those from Australia and South Africa usually marketed as frozen tails; caught also in Florida and Californialangouste, rock lobster, spiny lobstersea crawfish, spiny lobster, langouste, rock lobster, crawfish, crayfish - large edible marine crustacean having a spiny carapace but lacking the large pincers of true lobstersshellfish - meat of edible aquatic invertebrate with a shell (especially a mollusk or crustacean) | | 2. |  crayfish - tiny lobster-like crustaceans usually boiled brieflycrawdad, crawfish, ecrevisseOld World crayfish, ecrevisse - small crayfish of Europe and Asia and western North AmericaAmerican crayfish - common large crayfishes of eastern North Americashellfish - meat of edible aquatic invertebrate with a shell (especially a mollusk or crustacean) | | 3. |  crayfish - small freshwater decapod crustacean that resembles a lobstercrawdaddy, crawfish, crawdaddecapod, decapod crustacean - crustaceans characteristically having five pairs of locomotor appendages each joined to a segment of the thoraxAstacidae, Astacura, family Astacidae - crayfishOld World crayfish, ecrevisse - small crayfish of Europe and Asia and western North AmericaAmerican crayfish - common large crayfishes of eastern North America | | 4. |  crayfish - large edible marine crustacean having a spiny carapace but lacking the large pincers of true lobsterssea crawfish, spiny lobster, langouste, rock lobster, crawfishlobster - any of several edible marine crustaceans of the families Homaridae and Nephropsidae and Palinuridaegenus Palinurus, Palinurus - type genus of the family Palinuridaecrayfish, langouste, rock lobster, spiny lobster - warm-water lobsters without claws; those from Australia and South Africa usually marketed as frozen tails; caught also in Florida and California |
Translationscrayfish (ˈkreifiʃ) – plural ˈcrayfish – (also especially American , crawfish (ˈkroːfiʃ) – plural ˈcrawfish) a type of edible shellfish. 小龍蝦，螯蝦 小龙虾crayfish
crayfish or crawfish, freshwater crustaceancrustacean
, primarily aquatic arthropod of the subphylum Crustacea. Most of the 44,000 crustacean species are marine, but there are many freshwater forms. The few groups that inhabit terrestrial areas have not been particularly successful in an evolutionary sense; most require
..... Click the link for more information. smaller than but structurally very similar to its marine relative the lobsterlobster,
marine crustacean with five pairs of jointed legs, the first bearing large pincerlike claws of unequal size adapted to crushing the shells of its prey. The segmented body of the lobster consists of a large cephalothorax (made up of 14 segments) and a moveable, muscular
..... Click the link for more information. , and found in ponds and streams in most parts of the world except Africa. Crayfish grow some 3 to 4 in. (7.6–10.2 cm) in length and are usually brownish green; some cave-dwelling forms are colorless and eyeless. They are scavengers, feeding on decayed organic matter and also on small fish. The swamp crayfish digs a burrow up to 3 ft (91 cm) deep with a water-filled cavity at the bottom in case of drought. The eggs develop while attached to the swimming legs of the female and look like miniature adults when hatched. Although crayfish are not eaten in most parts of the United States, they are consumed in areas in the Mississippi River basin and are used in the Louisiana area in a thick soup called crayfish bisque. They are agricultural pests in the Mississippi Delta area, where they feed on sprouting wheat and corn. A red-clawed species is considered a delicacy in Europe. Crayfish are classified in the phylum ArthropodaArthropoda
[Gr.,=jointed feet], largest and most diverse animal phylum. The arthropods include crustaceans, insects, centipedes, millipedes, spiders, scorpions, and the extinct trilobites.
..... Click the link for more information. , subphylum Crustacea, order Decapoda.Crayfish an invertebrate of the order Decapoda. The body length is usually 6–30 cm, but some species, such as the Madagascar crayfish, reach a length of 80 cm. Most crayfishes inhabit freshwaters. They are nocturnal animals and hide in their burrows during the day. Crayfishes feed primarily on aquatic vegetation growing near the shore, but occasionally they feed on animal substances. The males are longer than the females and have more powerful claws. Crayfishes reproduce in the fall, after the females molt. The females carry from 50 to 100 eggs on their abdomen. There are three families of crayfishes, distributed in temperate zones throughout the world, excluding Africa. Eight species of the family Astacidae are found in the USSR, with Astacus leptodactylus and A. astacus having the greatest commercial value. Approximately 90 percent of the entire catch of crayfishes in the USSR is from the basin of the Sea of Azov and the Baltic Sea. REFERENCESBudnikov, K. N., and F. F. Tret’iakov. Rechnye raki i ikh promysel. Moscow, 1952.
Ivanov, A. V. Promyslovye vodnye bezpovonochnye. Moscow, 1955.crayfish[′krā‚fish] (invertebrate zoology) The common name for a number of lobsterlike fresh-water decapod crustaceans in the section Astacura. crayfish (esp US), crawfish1. any freshwater decapod crustacean of the genera Astacus and Cambarus, resembling a small lobster 2. any of various similar crustaceans, esp the spiny lobster crayfish
crayfish a decapod crustacean (suborder Macrura) that possesses an elongate body of the CARIDOID FACIES type.crayfish
Synonyms for crayfishnoun warm-water lobsters without clawsSynonyms- langouste
- rock lobster
- spiny lobster
Related Words- sea crawfish
- spiny lobster
- langouste
- rock lobster
- crawfish
- crayfish
- shellfish
noun tiny lobster-like crustaceans usually boiled brieflySynonymsRelated Words- Old World crayfish
- ecrevisse
- American crayfish
- shellfish
noun small freshwater decapod crustacean that resembles a lobsterSynonymsRelated Words- decapod
- decapod crustacean
- Astacidae
- Astacura
- family Astacidae
- Old World crayfish
- ecrevisse
- American crayfish
noun large edible marine crustacean having a spiny carapace but lacking the large pincers of true lobstersSynonyms- sea crawfish
- spiny lobster
- langouste
- rock lobster
- crawfish
Related Words- lobster
- genus Palinurus
- Palinurus
- crayfish
- langouste
- rock lobster
- spiny lobster
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