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horntail

[hawrn-teyl]
noun
  1. any of various wasplike insects of the family Siricidae, the females of which have a hornlike ovipositor.
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Origin of horntail

First recorded in 1880–85; horn + tail1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for horntail

horntail

noun
  1. any of various large wasplike insects of the hymenopterous family Siricidae, the females of which have a strong stout ovipositor and lay their eggs in the wood of felled treesAlso called: wood wasp
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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