pyrometer

English

Etymology

Etymology tree

Proto-Indo-European *péh₂wr̥

Proto-Hellenic *pāwər

Ancient Greek πῦρ (pûr)

Latin pyr

English pyro-

Proto-Indo-European *meh₁-

Proto-Indo-European *-tḗr

Proto-Indo-European *-trom

Proto-Hellenic *-tron

Ancient Greek -τρον (-tron)

Ancient Greek μέτρον (métron)der.

English -meter

English pyrometer

From pyro- + -meter.

Pronunciation

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Noun

pyrometer (plural pyrometers)

1. A thermometer designed to measure high temperatures.
   • 1961 March, ""Balmore"", “Driving and firing modern French steam locomotives”, in Trains Illustrated, page 147:

     I was working with full regulator and about 40 per cent cut-off and we were going quite hard when André called my attention to the pyrometer. This was showing a comparatively low temperature (about 250 deg C.) which meant that unless I eased up, the boiler might start to prime. So we eased her a shade, let the water come down to a third of a glass and then we were away again in perfect order with the pyrometer showing about 375 deg C.

2. An instrument for measuring the thermal expansion of solids.

Derived terms

• radiation pyrometer

Related terms

• pyrometric
• pyrometry

Translations

thermometer

• Catalan: piròmetre m
• Galician: pirómetro (gl) m
• Italian: pirometro m
• Persian: تف‌سنج (fa) (taf-sanj), پیرومتر (pirometr)
• Portuguese: pirómetro m (Portugal), pirômetro m (Brazil)
• Spanish: pirómetro (es) m

instrument for measuring the thermal expansion of solids