Dial  —n. 1 plate with a scale for measuring weight, volume, etc., indicated by a pointer. 2 movable numbered disc on a telephone for making connection. 3 face of a clock or watch, marking the hours etc. 4 a plate or disc etc. On a radio or television for selecting a wavelength or channel. B similar device on other equipment. —v. (-ll-; us -l-) 1 (also absol.) Select (a telephone number) with a dial. 2 measure, indicate, or regulate with a dial. [medieval latin diale from dies day]