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[gloh-wurm] /ˈgloʊˌwɜrm/
the wingless female or larva of the European beetle, Lampyris noctiluca, which emits a sustained greenish light.
any of various other beetle larvae or wingless females that emit a glow rather than a flash of light.
Origin of glowworm
1300-50; Middle English. See glow, worm Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for glowworm
Historical Examples
  • It wavered in patches, it seemed to stir and creep like the light of a glowworm.

    Youth Joseph Conrad
  • Cap's cigarette shone like a glowworm in the shadow of the stack.

    Stanford Stories Charles K. Field
  • It may be 'tis but a glowworm now; but 'twill Grow to a fire-drake presently.

    Fiends, Ghosts, and Sprites John Nettin Radcliffe
  • "A glowworm could not find its mate," he sings, referring to Walther and Eva.

  • The bodies of the glowworm and firefly always are transparent when filled with flame.

    Motor Matt's Race Stanley R. Matthews
  • A glowworm is not discerned in the sunshine, though it glister in the dark.

  • The phosphorescence was not unlike the ineffectual fire of the glowworm.

    North-Pole Voyages Zachariah Atwell Mudge
  • There were glowworm gems in the dark masses of her luxuriant hair.

    A Soldier's Trial

    Charles King
  • Suddenly there was a flash in the depths of the wood, as if a glowworm were flying by.

  • The glowworm light lasts for many seconds and then dies out.

    The Nature of Animal Light E. Newton Harvey

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