Crayfish

What does CRAYFISH mean?

1. noun

   warm-water lobsters without claws; those from Australia and South Africa usually marketed as frozen tails; caught also in Florida and California

2. noun

   tiny lobster-like crustaceans usually boiled briefly

3. noun

   small freshwater decapod crustacean that resembles a lobster

4. noun

   large edible marine crustacean having a spiny carapace but lacking the large pincers of true lobsters

Definitions from WordNet 3.1, Princeton University.