D defs.my
Entry 1 sense Webster, 1913

Leatherback

/lĕth'-ẽrb-ăkˌ/ · Leath·er·back · IPA /ˈlɛ.ðɚ.bæk/
01 n. 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…
  1. 1.
    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.(Zool.) Also: leather turtle, leathery turtle, leather-backed tortoise