- noun a device that uses a cathode ray tube to produce a visual record of an electrical current on a fluorescent screen
- An instrument which uses a CRT to produce visible patterns of one or more varying electrical quantities, or nonelectrical quantities, such as acoustic waves, with the assistance of a transducer. An oscilloscope typically displays variations in voltage plotted versus time, and may be used, for instance, to monitor signals such as brain waves. Also called cathode ray oscilloscope.
- An oscilloscope (1) which uses another type of display, such as an LCD or plasma display.
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