The Collaborative International Dictionary of English v.0.48:
Armadillidium \Armadillidium\ n. 1. 1 the type genus of the Armadillidiidae. Syn: genus Armadillidium. [WordNet 1.5]WordNet (r) 3.0 (2006):
Armadillidium n 1: type genus of the Armadillidiidae [syn: Armadillidium, genus Armadillidium]