Found 1 items, similar to differential thermometer.
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Definition: differential thermometer
Thermoscope
\Ther"mo*scope\, n. [Thermo- + -scope.] (Physics)
An instrument for indicating changes of temperature without
indicating the degree of heat by which it is affected;
especially, an instrument contrived by Count Rumford which,
as modified by Professor Leslie, was afterward called the
differential thermometer.
[1913 Webster]