柞蚕丝

[ noun ]
oriental moth that produces brownish silk
<noun.animal>

Tussah \Tus"sah\ Tusseh \Tus"seh\(t[u^]s"s[.a]), n. [Also
{tussa}, {tussar}, {tusser}, {tussur}, etc.] [Prob. fr. Hind.
tasar a shuttle, Skr. tasara, trasara.]
An undomesticated East Indian silkworn ({Anther[ae]a
mylitta}), that feeds on the leaves of the oak and other
plants.
[Webster 1913 Suppl.]