from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The soft wool lying beneath the long coat of the muskox, valued for its use as a fiber.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The underwool of the Arctic muskox, used as a fibre.
Inuit, pl. of qiviuq, down, underhair.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Eastern Canadian Inuktitut ᕿᕕᐅᖅ (qiviut, "underwool"). (Wiktionary)