- noun a clock that shows the time as a series of digits, e.g. 12:22:04
- A device or circuit which provides a steady stream of timed pulses. Used, for instance, as the internal timing device of a digital computer, upon which all its operations depend.
- An instrument or device which indicates time via a digital display.
- noun a clock which shows the time as a series of figures, e.g. 12:05:23, rather than on a circular dial