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-ā- in Indo-European roots.
From Latin barbula (“little beard”).