Any one of several very large species of chelonians having the feet converted into paddles, as the green turtle, hawkbill, loggerhead, and leatherback
A sea turtle is a large reptile which has a thick shell covering its body and which lives in the sea most of the time. Any of various large marine turtles of the families Cheloniidae and Dermochelyidae, including the green turtle, loggerhead turtle, ridley, and leatherback, having the forelimbs modified into very large flippers and usually living in tropical and subtropical oceans
any of various large turtles with limbs modified into flippers; widely distributed in warm seas