Rare ·Advanced level

Definitions

Noun

1. 1
   extinct small freshwater jawless fish usually having a heterocercal tail and an armored head; of the Silurian and Devonian wordnet

Synonyms

All synonyms

anaspidabarebare-skinnedfossil jawless fishjawless vertebratepaleozoic fish

Antonyms

All antonyms

armoredarmored formarmored specimencovered