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Nicol prism

[nik-uh l]
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noun Optics.
  1. one of a pair of prisms used to produce and analyze plane-polarized light in a polarizing microscope.Also called Nic·ol.Compare polarizer(def 1).
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Origin of Nicol prism

1870–75; after William Nicol (1768–1851), British physicist, its inventor
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for nicol prism

Nicol prism

noun
  1. a device composed of two prisms of Iceland spar or calcite cut at specified angles and cemented together with Canada balsam. It is used for producing plane-polarized light
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Word Origin

C19: named after William Nicol (?1768–1851), Scottish physicist, its inventor
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