Mexican jumping bean

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jump′ing bean`


n.
the seed of any of certain Mexican plants of the genera Sebastiania and Sapium, of the spurge family: the movements of a moth larva inside the seed cause it to move about or jump.
[1885–90]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.Mexican jumping bean - seed of Mexican shrubs of the genus Sebastiana containing the larva of a moth whose movements cause the bean to jerk or tumbleMexican jumping bean - seed of Mexican shrubs of the genus Sebastiana containing the larva of a moth whose movements cause the bean to jerk or tumble
genus Sebastiana, Sebastiana - Mexican spurges
seed - a small hard fruit
References in periodicals archive ?
Just seven minutes after Fergie's box of Mexican jumping beans sprang from the bench, Paul Schloles suffered one of his "redmist moments" and left Pablo Zabaleta with a souvenir set of studmarks on his thigh.
Both eyes sprung open like determined little Mexican jumping beans.
We'll all get our curtain call, though few have what you'd really call an act: Guy at the Coke Dispenser, Babe Serving Thin-Crust Pizza, Dude Selling Charity Coupon Booklets; Girl Removing Dead Mexican Jumping Beans and Replacing Them with Live Jumping Beans.
For the present she seems to have swept all thoughts about her 11-plus results from her mind, although she has asked if I think her Mexican jumping beans will hatch next month.