trichroism [trahy-kroh-iz-uh m] Word Origin noun Crystallography.

  1. pleochroism of a biaxial crystal such that it exhibits three different colors when viewed from three different directions under transmitted light.

Origin of trichroism First recorded in 1840–50; trichro(ic) + -ism Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019 British Dictionary definitions for trichroism trichroism noun

  1. a property of biaxial crystals as a result of which they show a perceptible difference in colour when viewed along three different axesSee pleochroism

Derived Formstrichroic, adjectiveWord Origin for trichroism C19: from Greek trikhroos three-coloured, from tri- + khrōma colour 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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