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“geothermometer”
An instrument for measuring subterranean temperatures: Jack's professor in geology showed the students a photo of a geothermometer used to find out the temperature of geological substances from long ago, or those that were at a considerable depth in the Earth.
This entry is located in the following units:
geo-, ge- +
(page 20)
thermo-, therm-, thermi-, -thermia, -therm, -thermal, -thermic, -thermias, -thermies, -thermous, -thermy
(page 9)