Plăcē-o-dĕrm, n.
n. [Gr. πλάξ, πλακός, any thing flat and broad, and δέρμα, skin.] (Palæon.) One of the bony plated fishes of the Devonian, as the Pterichthys coccocteus, and others.
n. [Gr. πλάξ, πλακός, any thing flat and broad, and δέρμα, skin.] (Palæon.) One of the bony plated fishes of the Devonian, as the Pterichthys coccocteus, and others.