from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The soft, fine undercoat of certain mammals, such as otters, beavers, and seals.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The thick, soft undercoat of some mammals, especially those that spend time in the water
from The Century Dictionary and Cyclopedia
- n. The coat of soft, fine hair, or fur, found in many mammals, overlain by longer, coarser hairs. The underfur forms the principal furs of commerce, such as the beaver, otter, fur-seal, etc.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. thick soft fur lying beneath the longer and coarser guard hair
In fact, the underfur was no longer available in quantity, for beaver populations had precipitously declined, a hard fact noted by old trappers who remembered the glory days when the animals were so numerous a man could whack them dead with a stick.
Collection of the underfur causes the death of the chiru.
It is being slaughtered illegally by the thousands for its wool actually, the underfur of the chiru, which is known in the international market as "shahtoosh" or "king of wool."
Fog settles onto damp leaves in the woods - not Prufrock's yellow fog or the amber fog of the suburbs, but a gray-white hanging mist that feels like the down or underfur of some pervasive beast.
For generations until 1684, the maharajah of Kashmir had exclusive rights to the underfur combed from the throat and belly of this cold old goat.
Instead of long body hairs, markhors possess insulating underfur - a soft and valuable raw material for the famous Kashmiri shawls.
The soft dense underfur (the commercially valuable pelt called "nutria") is about 2 cm long on the belly, and
The coypu is adapted to a semiaquatic existence and has webbed feet, valvular nostrils that can be closed to keep water out, and underfur that remains dry even under water.
The pelage is thick, with coarse guard hairs overlying the underfur.
Whinney's shaggy coat was heavy even in summer, though it would be much thicker in winter when the dense underfur grew in.