Grass sponge

(Zool.) an inferior kind of commercial sponge from Florida and the Bahamas.
any one of several varieties of coarse commercial sponges having the surface irregularly tufted, as Spongia graminea, and S. equina, variety cerebriformis, of Florida and the West Indies.

See also: Grass, Sponge

Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in periodicals archive ?
Earth Made's line of all-natural products include loofah and sea grass sponges and Blasdell Body Care, a collection of all-natural soaps and bath salts created by the entrepreneurial duo themselves after years of research and a desire to find a product that would not irritate the skin.