1. (n.) The act of driving back, or the state of being driven back; reflection; reverberation; as, the repercussion of sound.

2. (n.) Rapid reiteration of the same sound.

3. (n.) The subsidence of a tumor or eruption by the action of a repellent.

4. (n.) In a vaginal examination, the act of imparting through the uterine wall with the finger a shock to the fetus, so that it bounds upward, and falls back again against the examining finger.

aftermath antagonism antipathy backfire backlash backlashing backwash boomerang bounce bound cantando carom clashing clout collision concussion conflict confutation consequence contradiction contraposition contrariety contrecoup counteraction counterposition counterworking crankiness crotchetiness crunch demilegato dissent echo effect execution expression fallout fingering force friction glissando impact impress impression imprint interference intonation kick kickback legato mark mezzo staccato music-making nonconformity opposition opposure oppugnance oppugnancy outcome parlando percussion performance perverseness pianism pizzicato print reaction rebound rebuff recalcitrance recalcitration recoil reflex rendering rendition renitency repugnance repulse resilience resistance response result reverberation revolt ricochet rubato shock slur smash spiccato spring staccato swimming upstream touch upshot