dial(redirected from astigmatic dial)
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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.
dial(1) See rotary dial.
(2) A Microsoft input device for its Surface Studio PC. See Surface Studio.