Search millisecond (msec) millisecond (msec) /-sek′ənd/ [L, mille, thousand; ME, seconde, small part] , one thousandth (10−3) of a second. Tweet Telegram VK Random Words 3-methoxy-4-hydroxymandelic acid resistance-inducing factor (RIF) Leukeran foregut bestiality satyriasis CURN ORT abarognosis