diamondback

adjective

noun

1. ☆ a large, poisonous rattlesnake (Crotalus adamanteus) with diamond-shaped markings on its back, native to the S U.S.
2. ☆ an edible turtle (Malaclemys terrapin) with diamond-shaped markings on its shell, found in coastal salt marshes from Cape Cod to Mexico
   in full diamondback terrapin
3. a small, brown-and-white cosmopolitan moth (Plutella xylostella) whose wings, when folded, form a diamond