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apterous

[ap-ter-uh s] /ˈæp tər əs/
adjective
1.
Zoology. wingless, as some insects.
2.
Botany. without membranous expansions, as a stem.
Origin
1765-1775
1765-75; < Greek ápteros wingless. See a-6, -pterous
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for apterous

apterous

/ˈæptərəs/
adjective
1.
(of insects) without wings, as silverfish and springtails
2.
without winglike expansions, as some plant stems, seeds, and fruits
Derived Forms
apterism, 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
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