Wiktionary
common bean
n. 1 An herbaceous annual plant ''Phaseolus vulgaris'', grown for its edible bean. 2 A bean of such a plant, varying in size, shape and especially color.
WordNet
common bean
n. the common annual twining or bushy bean plant grown for its edible seeds or pods [syn: common bean plant, Phaseolus vulgaris]
any of numerous beans eaten either fresh or dried