n.
Pronunciation: k ō - ' k ā n, ' k ō - ˌ
Function: noun
Date: 1874
: a bitter crystalline alkaloid C 17 H 21 NO 4 obtained from coca leaves that is used especially in the form of its hydrochloride medically as a topical anesthetic and illicitly for its euphoric effects and that may result in a compulsive psychological need