English Dictionary

JAWLESS FISH

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 Dictionary entry overview: What does jawless fish mean? 

JAWLESS FISH (noun)
  The noun JAWLESS FISH has 1 sense:

1. eel-shaped vertebrate without jaws or paired appendages including the cyclostomes and some extinct formsplay

  Familiarity information: JAWLESS FISH used as a noun is very rare.


 Dictionary entry details 


JAWLESS FISH (noun)


Sense 1

Meaning:

Eel-shaped vertebrate without jaws or paired appendages including the cyclostomes and some extinct forms

Classified under:

Nouns denoting animals

Synonyms:

agnathan; jawless fish; jawless vertebrate

Hypernyms ("jawless fish" is a kind of...):

aquatic vertebrate (animal living wholly or chiefly in or on water)

Hyponyms (each of the following is a kind of "jawless fish"):

ostracoderm (extinct fish-like jawless vertebrate having a heavily armored body; of the Paleozoic)

heterostracan (extinct jawless fish with the anterior part of the body covered with bony plates; of the Silurian and Devonian)

cephalaspid; osteostracan (extinct jawless fish of the Devonian with armored head)

anaspid (extinct small freshwater jawless fish usually having a heterocercal tail and an armored head; of the Silurian and Devonian)

conodont (small (2 inches long) extinct eellike fish with a finned tail and a notochord and having cone-shaped teeth containing cellular bone; late Cambrian to late Triassic; possible predecessor of the cyclostomes)

cyclostome (primitive aquatic vertebrate)

lamper eel; lamprey; lamprey eel (primitive eellike freshwater or anadromous cyclostome having round sucking mouth with a rasping tongue)

hag; hagfish; slime eels (eellike cyclostome having a tongue with horny teeth in a round mouth surrounded by eight tentacles; feeds on dead or trapped fishes by boring into their bodies)

Holonyms ("jawless fish" is a member of...):

Agnatha; superclass Agnatha (superclass of eel-shaped chordates lacking jaws and pelvic fins: lampreys; hagfishes; some extinct forms)


 Context examples 


Any jawed or jawless organisms in the phylum Chordata including the jawless fish, armored fish, cartilaginous fish, ray-finned fish and lobe-finned fish.

(FISH, NCI Thesaurus/CDISC)



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