Word.ws English Dictionary

idling speed

idling speed noun: the speed, measured in revolutions per minute, of an internal-combustion engine when it is running, but is at rest and without power being applied, typically with transmission in neutral.

Noun

idling speed (plural idling speeds)

  1. The speed, measured in revolutions per minute, of an internal-combustion engine when it is running, but is at rest and without power being applied, typically with transmission in neutral.
    • Heating in the passenger sections is by electricity obtained from the main generator. When heating is dictated by the operation of a thermostat in the roof of the motor coach, engine idling speed is 600 r.p.m. instead of the normal 450 r.p.m. in order to produce a high enough generator voltage...1962 December, “The Oxted Line diesel-electric multiple-units”, in Modern Railways, page 383

Forms of idling speed

pluralidling speeds

Questions about idling speed

What does idling speed mean?
Idling speed means the speed, measured in revolutions per minute, of an internal-combustion engine when it is running, but is at rest and without power being applied, typically with transmission in neutral.
What part of speech is idling speed?
Idling speed is a noun.
What is the plural of idling speed?
The plural of idling speed is idling speeds.

Words near idling speed in the dictionary

  1. idli podi
  2. Idlib
  3. idlike
  4. idlily
  5. idling
  6. idling speed
  7. idling speeds
  8. idlingly
  9. idlings
  10. idlis
  11. idlish

Source and license

Adapted from Wiktionary: idling speed (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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