| Pyrometer 1. (n.) An instrument used for measuring the expansion of solid bodies by heat. 2. (n.) An instrument for measuring degrees of heat above those indicated by the mercurial thermometer. Thesaurus Entries calorimeter, chemical detector, clinical thermometer, cryometer, electric thermometer, electronic counter, electronic detector, error corrector, error detector, galvanothermometer, gas thermometer, liquid-level sensor, meat thermometer, metal detector, photoelectric sorter, pyrometer, pyrometric cone, resistance pyrometer, sensor, telethermometer, temperature sensor, thermocouple, thermoelectrometer, thermometrograph, thermostat, ultrasonic detector |