• synonyms


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

First recorded in 1740–50; pyro- + -meter
Related formspy·ro·met·ric [pahy-ruh-me-trik] /ˌpaɪ rəˈmɛ trɪk/, py·ro·met·ri·cal, adjectivepy·ro·met·ri·cal·ly, adverbpy·rom·e·try, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for pyrometer

Historical Examples of pyrometer

  • The long tube that held the pyrometer was formed of the same metal.

    Two Thousand Miles Below

    Charles Willard Diffin

  • "The pyrometer's on the red, and the oven's hot," and the man left his bench.

    Spacehounds of IPC

    Edward Elmer Smith

  • For this reason the use of a pyrometer, when possible, saves mistakes and trouble.

    Choice Cookery

    Catherine Owen

  • In one corner was Lavoisier's pyrometer; in another Berard's gas food-warmer.

  • This pyrometer is probably the most widely used at the present time.

British Dictionary definitions for pyrometer


  1. 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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Derived Formspyrometric (ˌpaɪrəʊˈmɛtrɪk) or pyrometrical, adjectivepyrometrically, adverbpyrometry, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012