co·caine /koˈken, ˈkoˌ/
 古柯鹼


 co·caine /koˈken, ˈkoˌ/ 名詞
 古柯鹼,可卡因


 Co·ca·ine n. Chem. A powerful narcotic alkaloid, C17H21NO4, obtained from the leaves of coca. It is a bitter, white, crystalline substance, and is remarkable for producing local insensibility to pain.  It is classified as addictive and is not available in the U. S. without a prescription, but is nevertheless one of the most widespread illegal drugs of abuse.  It is used in several forms, including small pellets of free base, called crack.  Most of the cacaine illegally used in the U.S. is imported.

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 cocaine
      n : a narcotic (alkaloid) extracted from coca leaves; used as a
          surface anesthetic or taken for pleasure; can become
          powerfully addictive [syn: cocain]