Noun
large dark red bean; usually dried
the common bean plant grown for the beans rather than the pods (especially a variety with large red kidney-shaped beans)
Source: WordNetkidney-bean
Furthermore, the Inughuits, a tiny group of Inuits from northernmost Greenland (accounting for 1 percent of Greenland’s population), had long since had their own name for the island, Tartupaluk, which in their tongue denotes its kidney bean shape. Source: Internet
Other alleged weight reduction aids were made of Malabar tamarinds, white kidney bean extract, extract of forskolin (root of a plant in the mint family), and extract of a cactus from India and elsewhere. Source: Internet