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jawless fish

noun

Definition of jawless fish

: any of the taxonomic group (Agnatha) of primitive vertebrates without jaws including cyclostomes and extinct related forms — compare bony fish, cartilaginous fish

Examples of jawless fish in a Sentence

Recent Examples on the Web

 So Holmes and his colleagues looked at nearly 190 creatures in other vertebrate classes — from jawless fish such as lampreys, which have changed little from their evolutionary ancestors, to reptiles such as turtles. — Giorgia Guglielmi, Scientific American, "Huge Trove of Unknown Viruses Found in Fish, Frogs and Reptiles," 5 Apr. 2018

First Known Use of jawless fish

circa 1941, in the meaning defined above

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