RPM
n. C / Un. Stands for revolutions per minute. A measurement of how fast something is spinning. It counts how many full circles a part makes in one minute.
n. Abbreviation for revolutions per minute. A unit of rotational speed indicating the number of full rotations completed by a mechanical component around a fixed axis in sixty seconds.
The car engine reached 3,000 RPM on the highway.
Hard drives with a higher RPM can usually read and write data much faster than slower models.
The technician monitored the cooling fan's RPM to ensure the server remained within safe temperature limits during the stress test.
Often used as a collective measurement (uncountable) or to refer to specific readings (countable). Frequently functions as a modifier before another noun.