'Pteroceras' definitions:

Definition of 'Pteroceras'

From: GCIDE

Pteroceras \Pte*roc"e*ras\, n. [NL., fr. Gr. ? a wing + ? a horn.] (Zool.) A genus of large marine gastropods having the outer border of the lip divided into lobes; -- called also scorpion shell. [1913 Webster]