|prop. n.||1.||Any of several explosive mixtures, chiefly of ammonium nitrate and a nitrate derivative of naphthalene. They are stable, but require protection from moisture. As prepared it is a compressed cylinder of the explosive, filled with loose powder of the same composition, all inclosed in waterproof wrappers. It is used for mining.|
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.