The Collaborative International Dictionary of English v.0.48:
Aculeated \A*cu"le*a`ted\, a. Having a sharp point; armed with prickles; prickly; aculeate. [1913 Webster]WordNet (r) 3.0 (2006):
aculeated adj 1: having or resembling a stinger or barb; "aculeate insects such as bees and wasps" [syn: aculeate, aculeated]