The Collaborative International Dictionary of English v.0.48:
Ipecac \Ip"e*cac\ ([i^]p"[-e]*k[a^]k), n. An abbreviation of Ipecacuanha, and in more frequent use. [1913 Webster]WordNet (r) 3.0 (2006):
ipecac n 1: a medicinal drug used to evoke vomiting (especially in cases of drug overdose or poisoning)