Share this entry
barbule Line breaks: barb|ule
Pronunciation: /ˈbɑːbjuːl/

Definition of barbule in English:


A minute filament projecting from the barb of a feather.
Example sentences
  • Well known examples include the structural colors produced by brilliant iridescent butterfly wing scales and avian feather barbules, such as the peacocks tail.
  • The strongly iridescent colors of bird feathers are produced by arrays of melanin granules in the barbules of feathers.
  • The barbs, in turn, may bear barbules which may hook on to the barbules of an adjoining barb.


Mid 19th century: from Latin barbula, diminutive of barba 'beard'.

Definition of barbule in:
Share this entry

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.

Subscribe to remove adverts and access premium resources