[ noun ] a white crystalline compound used as an analgesic and also as an antipyretic <noun.artifact>
Phenacetin \Phe*nac"e*tin\, Phenacetine \Phe*nac"e*tine\, n. [Phenyl + acetic + -in.] (Pharm.) A white, crystalline compound, {C10H13O2N}, once used in medicine principally as an antipyretic. It is now seldom used because of serious side effects.