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n. - A heat-measuring instrument that records temperature variations on a chart as a function of time.

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Usage examples (4)
  • To end our review of the scientific apparatus at the exhibition we shall merely mention Mr. Van Rysselberghe's registering thermometrograph (shown in Figs. 13 and 14),...
  • The temperature fell rapidly, and the thermometrograph marked only two degrees on the surface of the sea, whilst the deep water was below zero.
  • Interesting experiments were made with the thermometrograph, or marine thermometer, at 290 fathoms, without reaching the bottom, at less than two miles from land.
  • In the first place, a thermometrograph indicating - 2° Centigrade, (about 28° Fahrenheit,) at a depth of a little over two metres, that is, about six feet and a half,...
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