Coca (noun)

1. A plant (Erythroxylum coca) native to the Andean region of South America, the leaves of which are chewed or used to make a stimulant and appetite suppressant.
2. The leaves of the coca plant, chewed or used to make a stimulant and appetite suppressant.

Origin:

From quechua kuka.

Examples:

1. In South America, coca leaves are often chewed to counter the effects of altitude sickness.
2. The coca plant is native to the Andean region of South America and has been used for centuries for its medicinal properties.
3. The coca leaves are used to make a stimulant and appetite suppressant.
4. Coca leaves are legal to chew in Peru, Bolivia, and Chile.
5. The coca plant is also used to make the illegal drug cocaine.