Main Entry: re·per·cus·sion

Pronunciation: \ˌrē-pər-ˈkə-shən, ˌre-\

Function: noun

Etymology: Latin repercussion-, repercussio, from repercutere to drive back, from re- + percutere to beat — more at percussion

Date: 1536

1 : reflection, reverberation
2 a : an action or effect given or exerted in return : a reciprocal action or effect b : a widespread, indirect, or unforeseen effect of an act, action, or event —usually used in plural

— re·per·cus·sive \-ˈkə-siv\ adjective