co·caine   (kō-kān', kō'kān')    n.  A colorless or white crystalline alkaloid, C17H21NO4, extracted from coca leaves, sometimes used in medicine as a local anesthetic especially for the eyes, nose, or throat and widely used as an illicit drug for its euphoric and stimulating effects. [French cocaïne, from coca, coca, from Spanish; see coca.]

Cocaine

Co"ca*ine\, n. (Chem.) A powerful alkaloid, C17H21NO4, obtained from the leaves of coca. It is a bitter, white, crystalline substance, and is remarkable for producing local insensibility to pain.

cocaine

A drug derived from the leaves of a shrub in South America that has an intoxicating effect on the body and can result in dependency if frequently used. Cocaine is used medically as a local anesthetic.

Note: Cocaine use constitutes a major drug problem in the United States.

cocaine 

Main Entry: co·caine
Pronunciation: kO-'kAn, 'kO-"
Function: noun
: a bitter crystalline alkaloid C₁₇H₂₁NO₄ obtainedfrom coca leaves that is used medically especially in the form of its hydrochloride as a topical anesthetic and illicitly for its euphoric effects and that may result in a compulsive psychological need

cocaine co·caine (kō-kān', kō'kān')
n.
A colorless or white crystalline alkaloid extracted from coca leaves, sometimes used as a local anesthetic especially for the eyes, nose, or throat and widely used as an illicit drug for its euphoric and stimulating effects.

cocaine   (kō-kān')  Pronunciation Key  A colorless or white crystalline alkaloid extracted from coca leaves. Cocaine is sometimes used in medicine as a local anesthetic, especially for the eyes, nose, or throat. It is also widely used as an illicit drug for its euphoric and stimulating effects. Chemical formula: C17H21NO4.