'Turtleback' definitions:

Definition of 'Turtleback'

From: GCIDE
  • Turtleback \Tur"tle*back`\ (t[^u]r"t'l-b[a^]k`), n.
  • 1. (Archaeol.) A rude stone celt of a form suggesting the back of a turtle. [Webster 1913 Suppl.]
  • 2. (Naut.) A convex deck at the bow or stern of a vessel, so made to shed the seas quickly. [Webster 1913 Suppl.]