crayfish

(noun) warm-water lobsters without claws; those from Australia and South Africa usually marketed as frozen tails; caught also in Florida and California. Synonyms: spiny lobster, langouste, rock lobster.

(noun) tiny lobster-like crustaceans usually boiled briefly. Synonyms: crawfish, crawdad, ecrevisse.

(noun) small freshwater decapod crustacean that resembles a lobster. Synonyms: crawfish, crawdad, crawdaddy.

(noun) large edible marine crustacean having a spiny carapace but lacking the large pincers of true lobsters. Synonyms: spiny lobster, langouste, rock lobster, crawfish, sea crawfish.