underhair

American  

[uhn-der-hair] / ˈʌn dərˌhɛər /

noun

Zoology.

1. a growth of short hair lying beneath a longer growth; undercoat.

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Example Sentences

“Raw,” particularly wonderful, presents silkworm cocoons that look like felted eggs; shimmering skeins of silk, unicorn-white; and a “hank” of pashmina, the fine underhair of the Changthangi goat.

From The Wall Street Journal

We saw traces everywhere: antlers, other bones, hoof prints, dung, and once a great hank of soft, woolly underhair, part of the winter coat that a musk ox had shed.

From The Guardian

The sides will be covered with good quality, long staple mohair, comparatively free from the coarse, dead underhair, or kemp.

From Project Gutenberg