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[pahy-rom-i-ter] /paɪˈrɒm ɪ tər/

an apparatus for measuring high temperatures that uses the radiation emitted by a hot body as a basis for measurement.
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


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