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leatherback turtle

[leth -er-bak] /ˈlɛð ərˌbæk/
noun
1.
a sea turtle, Dermochelys coriacea, having the shell embedded in a leathery skin, reaching a length of more than 7 feet (2.1 meter) and a weight of more than 1000 pounds (450 kg): the largest living sea turtle; an endangered species.
Also called leatherback.
Origin
1875-1880
1875-80; leather + back1
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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