fuscous

[ fuhs-kuh s ]

/ ˈfʌs kəs /

of brownish-gray or dusky color.

Origin of fuscous

1655–65; < Latin fusc(us) dark, tawny, dusky + -ous

The wings are not shaded with fuscous toward the base as much as in A. zerene.

The Butterfly Book |William Jacob Holland
It is of a pale yellowish color, becoming a dusky brown (fuscous) when bruised.

Among the Mushrooms |Ellen M. Dallas and Caroline A. Burgin
The plumage is very pale brown, marked with fuscous; the crown and wing-coverts rufous.

Argentine Ornithology, Volume I (of 2) |P. L. Sclater
Once I thought I saw the fuscous gleam of a red fox stealing silently through the brush.

Fisherman's Luck |Henry van Dyke

They may be obscured by a fuscous shade or may be modified by a dull or lustrous surface.

The Genus Pinus |George Russell Shaw

fuscous

/ (ˈfʌskəs) /

of a brownish-grey colour

C17: from Latin fuscus dark, swarthy, tawny