firefly Hear it!

firefly definition

fire·fly (-flī′)

noun pl. fireflies -·flies′

any of a family (Lampyridae) of winged beetles, active at night, whose abdomens usually glow with a luminescent light

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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