jumping bean Hear it!

jumping bean definition

☆ jumping bean

the seed of any of several Mexican plants (esp. genus Sebastiana) of the spurge family, containing the larvae of a small moth (Cydia saltitans), which by its movements makes the seed jump or roll about

Webster's New World College Dictionary Copyright © 2005 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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