pos>prop. n.. [ After the inventor, P. A. Favier, a Frenchman. ] 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 1913 Suppl. ]