資料來源 : Webster's Revised Unabridged Dictionary (1913)

Glass-rope \Glass"-rope`\, n. (Zo["o]l.)
   A remarkable vitreous sponge, of the genus {Hyalonema}, first
   brought from Japan. It has a long stem, consisting of a
   bundle of long and large, glassy, siliceous fibers, twisted
   together.