单词	jawless fish
释义	jawless fish noun : any of the taxonomic group (Agnatha) of primitive vertebrates without jaws including cyclostomes and extinct related forms compare bony fish, cartilaginous fish Example Sentences 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, 5 Apr. 2018 Word History First Known Use circa 1941, in the meaning defined above
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