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apterous

[ap-ter-uh s]
adjective
  1. Zoology. wingless, as some insects.
  2. Botany. without membranous expansions, as a stem.
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Origin of apterous

First recorded in 1765–75, apterous is from the Greek word ápteros wingless. See a-6, -pterous
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for apterous

apterous

adjective
  1. (of insects) without wings, as silverfish and springtails
  2. without winglike expansions, as some plant stems, seeds, and fruits
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Derived Formsapterism, noun

Word Origin

C18: from Greek apteros wingless, from a- 1 + pteron wing
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