What is "mung bean"

Mung \Mung\ (m[u^]ng), n. [Hind. m[=u]ng.] (Bot.) Green gram, a kind of legume (pulse) ( Vigna radiata syn. Phaseolus aureus, syn. Phaseolus Mungo), grown for food in British India; called also gram, mung bean, Chinese mung bean, and green-seeded mung bean. It is an erect, bushy annual producing edible green or yellow seeds, and edible pods and young sprouts.
--Balfour (Cyc. of India).

n. the seed of ''Vigna radiata'' which is native to Bangladesh, India, and Pakistan

n. erect bushy annual widely cultivated in warm regions of India and Indonesia and United States for forage and especially its edible seeds; chief source of bean sprouts used in Chinese cookery; sometimes placed in genus Phaseolus [syn: mung, green gram, golden gram, Vigna radiata, Phaseolus aureus]

The mung bean (Vigna radiata), alternatively known as the moong bean, green gram, Sanskrit मुद्ग / mudga, is a plant species in the legume family. The mung beean is mainly cultivated in India, China, and Southeast Asia. It is used as an ingredient in both savory and sweet dishes.