sea turtle Meaning, Definition & Usage

  1. noun any of various large turtles with limbs modified into flippers; widely distributed in warm seas
    marine turtle.

WordNet

Sea" tur"tle
Definitions
  1. (Zoöl.) (a) Any one of several very large species of chelonians having the feet converted into paddles, as the green turtle, hawkbill, loggerhead, and leatherback. They inhabit all warm seas. (b) The sea pigeon, or guillemot.

Webster 1913