Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun ostracoderm

1 sense of ostracoderm

Sense 1
ostracoderm -- (extinct fish-like jawless vertebrate having a heavily armored body; of the Paleozoic)
       => jawless vertebrate, jawless fish, agnathan -- (eel-shaped vertebrate without jaws or paired appendages including the cyclostomes and some extinct forms)