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polarimeter

[ poh-luh-rim-i-ter ]

noun

, Optics.
  1. an instrument for measuring the amount of light received from a given source as a function of its state of polarization.
  2. a form of polariscope for measuring the angular rotation of the plane of polarization.

polarimeter

/ ˌpəʊləˈrɪmɪtə; ˌpəʊlərɪˈmɛtrɪk /

noun

  1. an instrument for measuring the amount of polarization of light
  2. an instrument for measuring the rotation of the plane of polarization of light as a result of its passage through a liquid or solution See optical activity
“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

  • ˌpolarˈimetry, noun
  • polarimetric, adjective
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Word History and Origins

Origin of polarimeter1

1860–65; < Medieval Latin polāri ( s ) polar + -meter
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Example Sentences

The presence of cane sugar can be detected with certainty only by the use of the polarimeter.

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