1541, from L. suppurationem (nom. suppuratio), noun of action from suppuratum, pp. of suppurare "form or discharge pus," from sub "under" + stem of pus (see pus).
Main Entry: sup·pu·ra·tion Pronunciation: "s&p-y&-'rA-sh&n Function: noun : the formation of, conversion into, or process ofdischarging pus suppuration> <suppuration in a wound>