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bolometer

[ boh-lom-i-ter, buh- ]

noun

, Physics.
  1. a device for measuring minute amounts of radiant energy by determining the changes of resistance in an electric conductor caused by changes in its temperature.


bolometer

/ bəʊˈlɒmɪtə; ˌbəʊləˈmɛtrɪk /

noun

  1. a sensitive instrument for measuring radiant energy by the increase in the resistance of an electrical conductor
“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


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Derived Forms

  • boˈlometry, noun
  • ˌboloˈmetrically, adverb
  • bolometric, adjective
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Other Words From

  • bo·lo·met·ric [boh-l, uh, -, me, -trik], adjective
  • bolo·metri·cal·ly adverb
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Word History and Origins

Origin of bolometer1

1880–85; < Greek bol ( ) ray + -o- + -meter
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Word History and Origins

Origin of bolometer1

C19: from bol- , from Greek bolē ray of light, stroke, from ballein to throw + -meter
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Example Sentences

They may be investigated with the bolometer, an instrument invented by the late Professor Langley.

A more careful study has been made by Langley and Very with the bolometer.

We have a heat-measuring instrument, the bolometer, which makes the best thermometer seem Early Victorian.

Later, Langley reinvestigated the radiation of Pyrophorus and could detect no heating whatever with the bolometer.

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Bolognesebolometric magnitude