idling speed
Word Rarity
Rare
Frequency: Zipf frequency 2.82 in modern English
16
Scrabble Score
11
Letters
1
Syllables
8
Unique Chars
Meaning
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.
Example Sentences
- "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 output at rest."