thermoscope


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thermoscope

(ˈθɜːməˌskəʊp)
n
(General Physics) a device that indicates a change in temperature, esp one that does not measure the actual temperature
thermoscopic, ˌthermoˈscopical adj
ˌthermoˈscopically adv
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

thermoscope

a device for giving an approximation of the temperature change of a substance by noting the accompanying change in its volume. — thermoscopic, adj.
See also: Heat
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References in periodicals archive ?
He also invented the thermoscope and various military compasses.
The Thermoscope which was invented by Galileo in 1592 is semi-quantitative and displayed shifts in the temperature.
Everything indicates that the sunspots are centers in which the temperature is less, and I have demonstrated as much with the thermoscope. But it is also clear that the source of these lacunae is rather an eruption coming from the inside of the nucleus, rather than a simple drop in temperature produced in the photosphere by factors analogous to those in terrestrial meteorology, which would be difficult to imagine in the sun, whereas internal eruptions cannot be avoided in a body placed in such conditions.