dial

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di·al / ˈdī(ə)l/ • n. a face of a clock, watch, or sundial that is marked to show units of time. ∎  a similar face or flat plate with a scale and pointer for showing measurements of weight, volume, pressure, compass direction, etc. ∎  a disk with numbered holes on a telephone, enabling someone to make a call by inserting a finger in each of the holes corresponding to the number to be called and turning the disk. ∎  a plate or disk on a radio, stove, washing machine, or other piece of equipment that is tuned to select a wavelength or setting.• v. (di·aled, di·al·ing; Brit. di·alled, di·al·ling) [tr.] call (a telephone number) by turning a disk with numbered holes or pressing a set of buttons: he dialed room service | [intr.] company employees dial out from their office. ∎  (dial something up) gain access to a service using a telephone line: plans to enable customers to dial up videos from their living room. ∎  indicate or regulate by means of a dial: you're expected to dial in volume and tone settings.

dial

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dial instrument to tell the time of day by the shadow cast by the sun. XV. Obscure deriv. of medL. diālis, f. diēs day; see -AL 1.