Trip'o-li, n.
n. (Min.) An earthy substance originally brought from Tripoli, used in polishing stones and metals. It is principally silica, and has been found to consist almost wholly of the cast shells of microscopic organisms. Dana.
n. (Min.) An earthy substance originally brought from Tripoli, used in polishing stones and metals. It is principally silica, and has been found to consist almost wholly of the cast shells of microscopic organisms. Dana.