Re′per‐cus″sion (–k?sh″?n), n. [L. repercussio: cf. F. répercussion.] 1. The act of driving back, or the state of being driven back; reflection; reverberation; as, the repercussion of sound.
Ever echoing back in endless repercussion. Hare.
2. (Mus.) Rapid reiteration of the same sound.
3. (Med.) The subsidence of a tumor or eruption by the action of a repellent. Dunglison.
4. (Obstetrics) 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.