Placodermi
Pronunciation : Plac`o*der"mi
Part of Speech : n.
Etymology : [NL., fr. Gr. (Paleon.)
Definition : Defn: An extinct group of fishes, supposed to be ganoids. The body and head were covered with large bony plates. See Illust. under Pterichthys, and Coccosteus.
pl.
Source : Webster's Unabridged Dictionary, 1913