grass sponge

noun

1. a large, dark brown, commercial sponge, Spongia graminea, of Florida, the West Indies, and the Gulf of Mexico.

Word History and Origins

Origin of grass sponge¹

An Americanism dating back to 1870–75

Example Sentences

This is one of the species of sponges of the third commercial grade, which bear the trade-name of "grass-sponge."

From Project Gutenberg