Artificial intelligent assistant

ring-dial

ˈring-dial Now Hist.
  [f. ring n.1]
  (See quot. 1728.)

1667 [see dial 2 b]. 1674 Moxon Tutor Astron. v. Pref., Universal Dials are those commonly called Equinoctial or Ring-Dials. 1721 (title), Leybourn's Description and Use of..Gunter's Quadrant... To which is added the Use of..the Nocturnal, the Ring-Dyal, and Gunter's Line. 1728 Chambers Cycl., Ring-Dial, is a kind of Dial, usually small, and portable; consisting of a Brass Ring, or Rim, seldom exceeding two Inches in Diameter... Universal, or Astronomical Ring-dial, is a Ring-dial which serves to find the Hour of the Day in any Part of the Earth. 1825 Stranger's Comp. Cambridge 52 A globe, a universal ring-dial, a quadrant and compass, formerly belonging to Sir Isaac Newton. 1877 W. Jones Finger-ring 453 A brass ring-dial, probably of the kind formerly designated as ‘journey rings’.

Oxford English Dictionary

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