verb (presetting, preset, preset)
1 to set the controls of a piece of electrical equipment so that it will start to work at a particular time:
[VNtoinf] You can preset the radiators to come on when you need them to. * [VN] to preset TV channels / radio stations (= to set the controls so that particular channels are selected when you press particular buttons)
2 [VN] [usuallypassive] to decide sth in advance:
They kept to the preset route.
