n.1 any crustacean of the chiefly marine order Decapoda, characterized by five pairs of walking legs, e.g. shrimps, crabs, and lobsters.
2 any of various molluscs of the class Cephalopoda, having ten tentacles, e.g. squids and cuttlefish.
Derivatives:
decapodan adj.
Etymology: F d{eacute}capode f. Gk deka ten + pous podos foot