co·ca /ˈkokə/
 古柯,古柯葉
 co·ca /ˈkokə/ 名詞
 古柯,古加
 Co·ca n.  The dried leaf of a South American shrub (Erythroxylon Coca). In med., called Erythroxylon.
 Note: ☞ Coca leaves resemble tea leaves in size, shape, and odor, and are chewed (with an alkali) by natives of Peru and Bolivia to impart vigor in prolonged exertion, or to sustain strength in absence of food.
 Mexican coca, an American herb (Richardsonia scabra), yielding a nutritious fodder. Its roots are used as a substitute for ipecacuanha.
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 coca
      n 1: a South American shrub whose leaves are chewed by natives of
           the Andes; a source of cocaine [syn: Erythroxylon coca]
      2: United States comedienne who starred in early television
         shows with Sid Caesar (1908-2001) [syn: Imogene Coca]
      3: dried leaves of the coca plant (and related plants that also
         contain cocaine); chewed by Andean people for their
         simulating effect