togal on

a key or button on a computer that is pressed to turn a feature on and then off: Select the function you require by pointing to the toggle (= image of a button on the screen) with the mouse and then clicking. the moon on 30 december 1995 SMART Vocabulary: related words and phrases toggle verb [ I or T ] uk / ˈtɒɡ ə l / us / ˈtɑː ɡ ə l /