• synonyms


  1. having long antennae.
  2. belonging or pertaining to the Cerambycidae, comprising the long-horned beetles.
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  1. long-horned beetle.
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Origin of longicorn

1840–50; < New Latin longicornis long-horned, equivalent to longi- longi- + corn(ū) horn + -is adj. suffix
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for longicorn

Historical Examples of longicorn

  • But no other genus of Longicorn, so far as I am aware, practises this craft.

    The Glow-Worm and Other Beetles

    Jean Henri Fabre

  • These details tell us of three years of larval existence, a duration of life frequent in the Longicorn series.

  • If I had stopped to guess I would probably have considered the author a longicorn beetle or some fiddling orthopter.

    Edge of the Jungle

    William Beebe

  • Beetles of the longicorn tribe abound here; and to-day I have filled a box with more than a thousand new or rare insects.

  • Longicorn -ia: having the antennae as long or longer than the body; specifically the Cerambycid beetles.

British Dictionary definitions for longicorn


  1. Also called: longicorn beetle, long-horned beetle any beetle of the family Cerambycidae, having a long narrow body, long legs, and long antennae
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  1. zoology having or designating long antennae
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Word Origin for longicorn

C19: from New Latin longicornis long-horned
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012