dial

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dial

1. the circular graduated disc of various measuring instruments
2. 
a. the control on a radio or television set used to change the station or channel
b. the panel on a radio on which the frequency, wavelength, or station is indicated by means of a pointer
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Dial

 

a subassembly of a telephone that is used to control the operation of the apparatus in an automatic telephone exchange in order to establish a connection to the subscriber being called. Dials may be of the disk or push-button types, depending on the method of selecting the desired number.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.

dial

[dīl]
(communications)
In automatic telephone switching, a type of calling device which, when wound up and released, generates pulses required for establishing connections.
(design engineering)
A separate scale or other device for indicating the value to which a control is set.

DIAL

[′dī‚al]
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

dial

(1) See rotary dial.

(2) A Microsoft input device for its Surface Studio PC. See Surface Studio.
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