co·ca noun \ˈkō-kə\
: any of several South American shrubs (genus Erythroxylon of the family Erythroxylaceae); especially : one (E. coca) that is the primary source of cocaine
: dried leaves of a coca (as Erythroxylon coca) containing alkaloids including cocaine
Seen & Heard
What made you want to look up coca? Please tell us where you read or heard it (including the quote, if possible).