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1. One of the light, flat growths forming the plumage of birds, consisting of numerous slender, closely arranged parallel barbs forming a vane on either side of a horny, tapering, partly hollow shaft.
2. A feathery tuft or fringe of hair, as on the legs or tail of some dogs.
To grow feathers or become feathered.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.


any of the flat light waterproof epidermal structures forming the plumage of birds, several types of which form the body covering of birds. The principal types of feather are remex (wing feather); rectrice (tail feather); CONTOUR FEATHER (covering the outside of the bird); DOWN (the soft covering to the body); filoplume (hairlike feathers bearing a few barbs at the apex, occurring between the contour feathers). Feathers consist of a central RACHIS that supports BARBS which, except in down feathers, are connected to form a lamella by means of BARBULES. Feathers are now also known to have occurred in some Theropod DINOSAURS (Coelurosaurs) which have recently been excavated in China, and even Tyrannosaurus may have possessed feathers at some stage in its life cycle.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005

Patient discussion about feather

Q. can you be allergic to goose feathers?? do you get an allergic reaction even through the pillow cover??? If not- I don't know what it is but something in my bed is giving me a rash...

A. i had a similar problem. i just couldn't sleep in my bed and every day i changed one thing to see what is the cause. then i found that one of the pillows causes it and probably from dust mites. you can easily be allergic to goose feathers that can pass through the pillow cover. all you have to do is replace it and see if something changed.

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References in periodicals archive ?
Let us consider now the uniform mesh with central spline knots, i.e., hi = h, i = 1, ..., n, = ([x.sub.i-1] + [x.sub.i])/2, i = 2, ..., n -- 1.
During the testing, three same pins were arranged on one plate to form friction couples and then immersed into the lubricating oil to simulate the working environment of spline coupling.
One of the sections of the spline tooth specimen is annealed; next, the two samples are bonded by cutting, with the cutting section position (the removed volume should be sufficiently large to ensure that the release of stress can cause a sufficient amount of deformation), as shown in Figure 6.
All the geometrical details of the inner spline are considered in the FEM of the saw blade and the arbor.
For instance, we estimate from the penalized spline fit using AICc that the hazard of the event when exposed at a level of 2.0 is 1.3 times that when unexposed, corresponding to a 30% increase in hazard at this exposure level.
In this section we acquaint the reader with a subjective list of works on periodic spline interpolation and histopolation.
Accordingly, [R.sub.s] is the reaction that constraints exert on the grooved part of the shaft and it represents the load transfer R from the hub to the remaining part of the shaft through the spline surfaces.
Due to the surface roughness, the test region could not be located on the spline tooth surface.
Figure 1 shows the results of the reconstruction about Example 2.1 in [7] by using quadrature spline and cubic spline proposed in this paper.
Truncated spline nonparametric regression influenced by spatial heterogeneity is the development of nonparametric regression for spatial data with parameter estimators local to each location of observation.
The relationship between the QTc Spline and QTcBZT with the RR interval was examined for each individual by fitting two different models: a linear or first-order polynomial and a second-order polynomial.
STEP 23: Start pressing the spline into the groove at a corner, capturing one edge of the screen.