Dictionary
jack bean
noun
Definition of JACK BEAN
: a bushy annual tropical American legume (Canavalia ensiformis) grown especially for forage
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First Known Use of JACK BEAN
1885
Medical Dictionary
jack bean
noun \ˈjak-ˌbēn\
Medical Definition of JACK BEAN
1
: an annual tropical American plant of the genus Canavalia; especially : a plant (C. ensiformis) having long pods with white seeds and grown especially for forage
2
: the seed of the jack bean that is a source of canavalin and urease
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