Langimage
English

rev/min

|rev-per-min|

B2

🇺🇸

/rɛv pɚ ˈmɪnɪt/

🇬🇧

/rɛv pə ˈmɪnɪt/

rotations per minute

Etymology
Etymology Information

'rev/min' originates from modern English as an abbreviation of the phrase 'revolution per minute', where 'revolution' ultimately comes from Latin 'revolutio' meaning 'a turning' and 'minute' comes from Latin 'minuta' meaning 'small (part)'.

Historical Evolution

'revolution' passed from Latin 'revolutio' into Old French and Middle English (e.g. Middle English 'revolucioun') and became the modern English 'revolution'. 'Minute' came from Latin 'minuta' through Old French and Middle English. The short form 'rev' and the notation 'rev/min' developed in engineering and instrumentation usage in the 19th–20th centuries (e.g. on tachometers and technical charts).

Meaning Changes

Initially, 'revolution' meant 'a turn or the act of turning' and 'minute' meant 'small (part of an hour)'; together the phrase came to be used specifically as a measurement meaning 'the number of full rotations in one minute'.

Meanings by Part of Speech

Noun 1

abbreviation for 'revolutions per minute', a unit of rotational speed equal to the number of full rotations completed in one minute.

The engine reached 4,500 rev/min during the test.

Synonyms

Last updated: 2025/09/23 18:13