The American Heritage® Dictionary of the English Language, 4th Edition
n. Any of certain Andean evergreen shrubs or small trees of the genus Erythroxylum, especially E. coca, whose leaves contain cocaine and other alkaloids.
n. The dried leaves of such a plant, chewed by people of the Andes for a stimulating effect and also used for extraction of cocaine and other alkaloids.
n. The dried leaf of a South American shrub (Erythroxylon coca), widely cultivated legally in Andean countries, and the source of cocaine.
the GNU version of the Collaborative International Dictionary of English
n. The dried leaf of a South American shrub (Erythroxylon Coca). In med., called Erythroxylon.
The Century Dictionary and Cyclopedia
n. The dried leaf of Erythroxylon Coca, natural order Linaceæ, a small shrub of the mountains of Peru and Bolivia, but cultivated in other parts of South America.
n. The plant itself.
n. A Japanese rice-measure, equal to about 5 Winchester bushels.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. United States comedienne who starred in early television shows with Sid Caesar (1908-2001)
n. a South American shrub whose leaves are chewed by natives of the Andes; a source of cocaine
n. dried leaves of the coca plant (and related plants that also contain cocaine); chewed by Andean people for their stimulating effect
Word Usage
"The third was known as Bolivian, but it referred to coca found along the eastern slope of the Andes in both that country and Peru."