A drought-resistant legume which produces black seeds, Vigna mungo (formerly Phaseolus mungo) (family Fabaceae (Leguminosae)), which is closely related to the mung and is widely grown in India and elsewhere in tropical Asia as a pulse.
Origin
Mid 18th century.
Definition of black gram in US English:
black gram
noun
A drought-resistant legume which produces black seeds, Vigna mungo (formerly Phaseolus mungo) (family Fabaceae (Leguminosae)), which is closely related to the mung and is widely grown in India and elsewhere in tropical Asia as a pulse.