<p><strong>verb</strong></p><ul><li>(used with object) preset, presetting: to set beforehand.</li><li>to set (an electric or electronic appliance) to become activated at a designated time: We preset the coffeemaker to go on at 6 a.m.</li><li>to adjust (a connector, switch, or the like) so that when activated it will perform a designated function: The tuning buttons on the radio are preset to my favorite FM stations.</li></ul><p><strong>adjective</strong></p><ul><li>set in advance: a preset radio adjusted to receive certain stations.</li><li>(of the guidance system of a missile or the course of flight it determines) set before launching to reach a specific destination without any alteration in response to signals from the ground.</li></ul><p><strong>noun</strong></p><ul><li>a knob or button that activates a preset appliance: Just push the preset and coffee will be ready when you get up.</li><li>a similar device on a radio that can be activated to tune in a preselected station.</li></ul><p><strong>End of Response</strong></p>