rpm
From Longman Dictionary of Contemporary EnglishRelated topics: Measurementrpmrpm /ˌɑː piː ˈem $ ˌɑːr-/ TM (revolutions per minute) used to describe the speed at which something turns, especially an engine or a record playerFrom Longman Business DictionaryRPMRPMFINANCE abbreviation for RETAIL PRICE MAINTENANCE