Definition of "diamondback terrapin" []

• One of several turtles of the genus Malaclemys of the southern Atlantic and Gulf coasts of the United States, having edible flesh and a carapace with diamond-shaped ridged or knobbed markings. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.