apterous

apterous

[ap-ter-uhs]
adjective
1.
Zoology. wingless, as some insects.
2.
Botany. without membranous expansions, as a stem.

Origin:
1765–75; < Greek ápteros wingless. See a-6, -pterous

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World English Dictionary
apterous (ˈæptərəs)
 
adj
1.  (of insects) without wings, as silverfish and springtails
2.  without winglike expansions, as some plant stems, seeds, and fruits
 
[C18: from Greek apteros wingless, from a-1 + pteron wing]
 
'apterism
 
n

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