jack bean

noun

Definition of jack bean

:a bushy annual tropical American legume (Canavalia ensiformis) grown especially for forage

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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