Meaning of firefly

fire•fly

Pronunciation: (fīr'flī"), [key]
— pl. -flies.
  1. any nocturnal beetle of the family Lampyridae, characterized by a soft body with a light-producing organ at the rear of the abdomen. Also calledCf. glowworm.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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