Pronunciation: (dek'u-pod"),[key] —n. 1. any crustacean of the order Decapoda, having five pairs of walking legs, including the crabs, lobsters, crayfish, prawns, and shrimps.
2. any dibranchiate cephalopod having ten arms, as the cuttlefish or squid.
3. (cap.) a steam locomotive having a two-wheeled front truck, ten driving wheels, and no rear truck. See table under Whyte classification.
—adj. 1. belonging or pertaining to the decapods.
2. having ten feet or legs.