barbule


Also found in: Dictionary, Wikipedia.

barbule

(bär′byo͞ol)
n. Zoology
A small barb or pointed projection, especially one of the small projections fringing the edges of the barbs of feathers.
References in periodicals archive ?
The extent of both water repellency and resistance to water penetration can be ascertained by measuring the diameters of the barbs and barbules and their respective separations, which have been quantified for ~150 aquatic and terrestrial species of 45 families (Rijke 1970, Elowson 1984).
The barbules and the alignment of melanosomes within them, Carney said, are identical to those found in modern birds.
Ground in a pestle, the kingfisher's feathers are dark brown, similar to ravens; contour feathers have a tiny turquoise spot at the tip and colourless barbules to trick the light and scatter the blue-green wavelengths.
His beak reseals the barbules by zipping them together.
It gets it's name from the four barbules around its mouth which it uses for finding its food on the river bed.
Feathers also have barbules (little hooks) that fit together almost like a zipper to keep the feather flat and smooth.
Feathers have a central shaft with barbules radiating from it; down plumules grow in soft, little tufts all over a bird's skin, underneath its feathers.
Hoskin was taking umbrage at an article in Consumer Reports magazine in 1992 that charged that half the cans of tuna it tested contained "insect parts," "hairs," "fish scales," and "feather barbules.
The parotia feather is unique in that each of the tiny barbules that are linked to make the feather blade is shaped so that it has two outer surfaces whose structure means that it reflects blue light in two different directions, while the interior of the feather contains a third mirror, made of multiple layers of keratin and melanin, which reflects yellow light between the two blue beams," said Osorio.
1I), L-shaped phallotheca with a thumb-like projection, U-shaped basal part of vesica, well developed secondary gonopore with some associated barbules, single elongate apical spine of vesica (Fig.
Barbules, smaller fibers that branch from the barbs, can sport small hooklets that lock onto adjacent barbs or barbules.