Leatherback
Pronunciation : Leath"er*back`
Part of Speech : n.
Definition : Defn: A large sea turtle (Sphargis coriacea), having no bony shell on its back. It is common in the warm and temperate parts of the Atlantic, and sometimes weighs over a thousand pounds; -- called also leather turtle, leathery turtle, leather-backed tortoise, etc.
(Zo?l.)
Source : Webster's Unabridged Dictionary, 1913