Definition of jumping bean noun from the Oxford Advanced Learner's Dictionary


jumping bean

BrE BrE//ˈdʒʌmpɪŋ biːn//
; NAmE NAmE//ˈdʒʌmpɪŋ biːn//
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a plant seed that jumps because it has a small insect developing inside it
See the Oxford Advanced American Dictionary entry: jumping bean

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