jack bean
nounDefinition of jack bean
: a bushy annual tropical American legume (Canavalia ensiformis) grown especially for forage
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More Definitions for jack bean
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