1. an order of crustaceans (including true crabs) having a reduced abdomen folded against the ventral surface; [syn: Brachyura, suborder Brachyura]
WordNet (r) 3.0 (2006):
suborder Brachyura
n 1: an order of crustaceans (including true crabs) having a
reduced abdomen folded against the ventral surface [syn:
Brachyura, suborder Brachyura]