noun. cephalopods having eight short tentacles plus two long ones.
noun. crustaceans characteristically having five pairs of locomotor appendages each joined to a segment of the thorax.
1. Adjective Lobsters are a decapod crustacean that live in saltwater. 2. Noun, singular or mass Dungeness crab is, according to the Alaska Department of Fish and Game, a decapod related to shrimp, lobster and other crabs such as the Redrock crab.
