Glass-sponge

Glass´-sponge`


n.1.(Zool.) A siliceous sponge, of the genus Hyalonema, and allied genera; - so called from their glassy fibers or spicules; - called also vitreous sponge. See Glass-rope, and Euplectella.
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.