Definition of "ipecac"

The dried rhizome and roots of either of two tropical American plants (Cephaelis acuminata and Cephaelis ipecacuanha) of the madder family used especially as a source of emetine.  examples

(pharmacology) An emetic and expectorant drug that contains emetine and is prepared from ipecac especially as a syrup for use in treating accidental poisoning.

The shrub that produces ipecac (Cephaelis ipecacuanha), native to Brazil and cultivated elsewhere.  examples