any of the threadlike parts fringing each side of the barb of a feather
Origin of barbuleClassical Latin barbula, diminutive of barba, beard
A small barb or pointed projection, especially one of the small projections fringing the edges of the barbs of feathers.
Origin of barbuleLatin barbula, diminutive of barba, beard; see bhardh-a- in Indo-European roots.
From Latin barbula (“little beard”).