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firefly

 - 2 dictionary results

fire⋅fly

[fahyuhr-flahy]
–noun, plural -flies.
any nocturnal beetle of the family Lampyridae, characterized by a soft body with a light-producing organ at the rear of the abdomen.
Also called glowfly, lightning bug.
Compare glowworm.


Origin:
1650–60; fire + fly 2
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source Link To firefly
fire·fly   (fīr'flī')   
n.  Any of various nocturnal beetles of the family Lampyridae, characteristically having luminescent chemicals in the posterior tip of the abdomen that produce a flashing light. Also called lightning bug. See Regional Note at lightning bug.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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