Definition of leatherback
: the largest existing sea turtle (Dermochelys coriacea) distinguished by its flexible carapace composed of a mosaic of small bones embedded in a thick leathery skin
Recent Examples of leatherback from the Web
Really big, in the case of the leatherback, which can weigh nearly a ton.
Large-scale movements and high-use areas of western Pacific leatherback turtles, Dermochelys coriacea.
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