'Coccosteus' definitions:

Definition of 'Coccosteus'

From: GCIDE

Coccosteus \Coc*cos"te*us\, n. [NL., from Gr. ? grain, seed + ? bone.] (Paleon.) An extinct genus of Devonian ganoid fishes, having the broad plates about the head studded with berrylike tubercles. [1913 Webster]