Percussion

Percu ion, impact, striking, blow. Blow (in mechanics, an impulse communicated in an indefinitely small time). Musical instruments of percu ion collectively—Percu ion de tir. Shock or blow on gun-mounting at discharge.— Percu ion circulaire. Swinging blow as from percu ion hammer of a revolver.—Percu ion recti ligne. Straight blow as from striker of a rifle bolt—Mise de feu a percu ion.—Percu ion firing (of gun).—A percu ion centrale. Central-fire—Pre e 4 percu ion. Stamping pre . [p.427]