from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. See firefly.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Another name for the firefly.

from the GNU version of the Collaborative International Dictionary of English

  • n. a luminous beetle. See Firefly.

from The Century Dictionary and Cyclopedia

  • n. A firefly or phosphorescent beetle of the family Lampyridæ, related to the European glow-worms.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. nocturnal beetle common in warm regions having luminescent abdominal organs


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  • “The difference between the right word and the almost right word is the difference between lightning and a lightning bug.”

    - Letter to George Bainton from Mark Twain, 10/15/1888

    February 1, 2016

  • See firefly

    February 23, 2008