- any of the minute hairs that project from a barb and in some feathers interlock by hooks and grooves, forming a flat vane
WordReference Random House Unabridged Dictionary of American English © 2020
bar•bule (bär′byo̅o̅l),USA pronunciation n.
- Biologya small barb.
- Birdsany of the small processes fringing the barbs of a feather.
- Latin barbula. See barb1, -ule
Collins Concise English Dictionary © HarperCollins Publishers::
barbule /ˈbɑːbjuːl/ n
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