Home › Words › M › microaccelerationmicroaccelerationmicroacceleration means A numerically very small acceleration.Among words judged in Lexicurio's Arena, microacceleration ranks #35,474 of 42,749 for Qualifying.EtymologyFrom micro- + acceleration.nounA numerically very small accelerationDefinitions & examples from Wiktionary (CC BY-SA 3.0).