photochromism

Variant of photochromic

photochromic definition

photo·chro·mic (fōt′ō krō′mik)

adjective

designating or of a material, as certain glass or film, which turns dark when exposed to light and returns to its normal transparency with the removal of the light source

Etymology: photo- + chromic

Related Forms:

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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