from The American Heritage® Dictionary of the English Language, 4th Edition
- n. One of the minute, hooked projections extending from and interlocking the barbules of a feather.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Any of the hooks on the barbules of a feather that interlock adjacent barbs
from the GNU version of the Collaborative International Dictionary of English
- n. One of the small hooklike processes on the barbules of feathers.
from The Century Dictionary and Cyclopedia
- n. In ornithology, a fringing process of the third order of a feather; a fringe of a barbule; one of the processes with which a barbule is fringed, differing from a hamulus or hooklet in not being recurved.
New Latin barbicella, diminutive of Latin barba, beard.(American Heritage® Dictionary of the English Language, Fourth Edition)