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Nicol prism

[nik-uh l] /ˈnɪk əl/
noun, Optics.
one of a pair of prisms used to produce and analyze plane-polarized light in a polarizing microscope.
Also called Nicol.
Compare polarizer (def 1).
Origin of Nicol prism
1870-75; after William Nicol (1768-1851), British physicist, its inventor Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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British Dictionary definitions for Nicol prism

Nicol prism

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
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
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