barbule

barbule

[bahr-byool]
noun
1.
a small barb.
2.
any of the small processes fringing the barbs of a feather.

Origin:
1825–35; < Latin barbula. See barb1, -ule

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World English Dictionary
barbule (ˈbɑːbjuːl)
 
n
1.  a very small barb
2.  ornithol any of the minute hairs that project from a barb and in some feathers interlock by hooks and grooves, forming a flat vane
 
[C19: from Latin barbula a little beard, from barba beard]

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Science Dictionary
barbule   (bär'byl)  Pronunciation Key 
A small barb or pointed projection, especially one that fringes the edges of the barbs of feathers.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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