noun
Meaning 1
Any extinct fish of the class Osteostraci
Definition source: English Wiktionary via Wiktextract
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
Standard Lemma guide
osteostracan
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
Pronunciation
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noun
Meaning 2
extinct jawless fish of the Devonian with armored head
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: cephalaspid
Antonyms: none provided
Broader terms: jawless vertebrate, jawless fish, agnathan
History
Etymology
No etymology was provided for this word.