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A clock face or instrument resembling a clock face.
[L. dies, day]
Farlex Partner Medical Dictionary © Farlex 2012


(dī′ăl) [L. dialis, daily, fr. dies, day]
A graduated circular face, similar to a clock face, on which some measurement is indicated by a pointer that moves as the entity being measured (pressure, temperature, or heat) changes.

astigmatic dial

A circular dial with black lines of uniform width drawn as if they were connecting opposing numbers on the face of a clock. It is used in testing for astigmatism.
Medical Dictionary, © 2009 Farlex and Partners
References in periodicals archive ?
Moore shares the personal stories of several of the dial painters and their suffering due to radium poisoning through their letters, diaries, testimonies, and interviews with living relatives.
They were even smart enough to cap the windage dial. After all, why have it exposed when it is so seldom used?
As useful as it is tasteful, this everyday watch with its easily readable dial and practical, large date display immediately reveals its good lineage.
Since then he has created a sundial for Sir Patrick Moore, a replica of a 1683 dial for an earl in East Anglia, two for North Tyneside Council and for a Hong Kong magnate at his mansion in Monterey USA, and seven for the President of the North American Sundial Society.
Reveil GMT timepiece with sandy alligator strap and dial, $7,350, by Louis Vuitton
"The dial modem market is alive and continues to grow thanks to new open standard technology advancements such as V.92 and V.44," said Jennifer Liscom, principal analyst of Dataquest's Remote and Internet Access Telecommunications program.
Existing phone numbers in the 215 and 610 area codes will not change, but all callers will need to dial the area code and seven-digit phone number - or "Ten-number NumberSM" - when they make any calls within or between these four area codes.
The spout hits the "O" and I get an operator who transfers me, free of charge, to the 411 operator -- who stays on the line to dial the number for me.
When dialing into London, for example, one will now dial "0" plus 171, plus the seven-digit phone number.
Dial calipers add a dial readout affixed to the movable jaw assembly, and are the most common caliper model in use.
XX-Rated Purple looks cosmic and cool with a violet X on a white dial and a violet-ribbed silicone strap.
The participants dialed digit-only numbers and digit-letter combination sequences (such as 800-MADISON) using the enlarging techniques.