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barbule

American  
[bahr-byool] / ˈbɑr byul /

noun

  1. a small barb.

  2. any of the small processes fringing the barbs of a feather.


barbule British  
/ ˈbɑːbjuːl /

noun

  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

"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

barbule Scientific  
/ bärbyo̅o̅l /
  1. A small barb or pointed projection, especially one that fringes the edges of the barbs of feathers.


Etymology

Origin of barbule

From the Latin word barbula, dating back to 1825–35. See barb 1, -ule

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

He’s soaking up water in his specialized belly feathers, which have a coiled barbule which makes them extra spongey.

From National Geographic

Through a common magnifying glass each tiny barbule was seen to be ringed with gray and silvery white, so finely that the rings could hardly be seen.

From Project Gutenberg

Barbule: a small barb, beard or filiform appendage.

From Project Gutenberg