timeswitch
nounUK /ˈtaɪmswɪtʃ/
US /ˈtaɪmswɪtʃ/
A timeswitch is a small machine that turns things on or off at set times.
We set the timeswitch so the lights come on at seven o'clock.
RELATED WORDS
OTHER MEANINGS
2. A device that automatically starts or stops a heating system at chosen times.
The boiler's timeswitch saves energy by running only in the morning and evening.
3. A switch operated by a clock mechanism rather than by hand.
The old timeswitch in the hallway clicks loudly when it turns the lamp on.
4. A feature on a device that lets you schedule when it operates.
Check the timeswitch on the washing machine before you go to bed.