an instrument for measuring high temperatures, esp by measuring the brightness (optical pyrometer) or total quantity (radiation pyrometer) of the radiation produced by the source. Other types include the resistance thermometer and the thermocouple
Derived forms
pyrometric (ˌpaɪrəʊˈmɛtrɪk) or pyrometrical (ˌpyroˈmetrical)
adjective
pyrometrically (ˌpyroˈmetrically)
adverb
pyrometry (pyˈrometry)
noun
pyrometer in American English
(paɪˈrɑmətər)
noun
an instrument with which high temperatures, beyond the range of ordinary thermometers, are measured