ac·ce·le·ran·do I. \(ˌ)äˌcheləˈran(ˌ)dō, -än-\adverb (or adjective) Etymology: Italian, literally, accelerating, from Latin accelerandum, gerund of accelerare : gradually faster — used as a direction in music II. noun (-s) : a gradual increase in tempo < examples of the accelerandos … our metrical ear seems willing to accept — P.F.Baum >