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barbule definition

bar·bule (bär′byo̵̅o̅l′)

noun

any of the threadlike parts fringing each side of the barb of a feather

Etymology: L barbula, dim. of barba, beard

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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