An instrument used for measuring the expansion of solid bodies by heat. [1913 Webster]
An instrument for measuring degrees of heat above those indicated by the mercurial thermometer. [1913 Webster]
" It is usually constructed so as to register the change which the heat to be measured produces in the length of some expansible substance, as a metallic rod, or in the intensity of a thermo-electric current." [1913 Webster]

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OXFORD DICTIONARY

pyrometer, n. an instrument for measuring high temperatures, esp. in furnaces and kilns.

Derivative

pyrometric adj. pyrometrically adv. pyrometry n.

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ROGET THESAURUS

pyrometer

Thermometer

N thermometer, thermometrograph, mercury thermometer, alcohol thermometer, clinical thermometer, dry-bulb thermometer, wet-bulb thermometer, Anschutz thermometer, gas thermometer, telethermometer, color-changing temperature indicator, thermopile, thermoscope, pyrometer, calorimeter, bomb calorimeter, thermistor, thermocouple, thermostat, thermoregulator, (3) Taste.

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