photochromic

adjective
pho·to·chro·mic | \ ˌfō-tə-ˈkrō-mik \

Definition of photochromic 

1 : capable of changing color on exposure to radiant energy (such as light) photochromic glass

2 : of, relating to, or utilizing the change of color shown by a photochromic substance a photochromic process

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Other words from photochromic

photochromism \ˌfō-tə-ˈkrō-ˌmi-zəm \ noun

Examples of photochromic in a Sentence

Recent Examples on the Web

Since there weren’t any 3D printable photochromic inks in existence, CSAIL had to create its own. Emily Matchar, Smithsonian, "These 3D-Printed Objects Can Turn Any Color You Want," 30 Jan. 2018 My favorite feature is the photochromic Reactiv lenses that darken and brighten to suit the light conditions. Ben Fox, Outside Online, "Our Favorite Sunglasses for Every Activity," 20 Apr. 2018 Other photochromic chemicals are used to make sunglasses that darken when they are taken outside — into bright sunlight. Aaron Rowe, WIRED, "Video: Amazing Liquid Changes Color in UV Laser Beam," 28 June 2008

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'photochromic.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of photochromic

1881, in the meaning defined at sense 1

History and Etymology for photochromic

phot- + chrom- + -ic entry 1

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Statistics for photochromic

Last Updated

30 Aug 2018

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Time Traveler for photochromic

The first known use of photochromic was in 1881

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More Definitions for photochromic

photochromic

adjective
pho·to·chro·mic | \ ˌfōt-ə-ˈkrō-mik \

Medical Definition of photochromic 

(Entry 1 of 2)

1 : capable of changing color on exposure to radiant energy (as light) eyeglasses with photochromic lenses

2 : of, relating to, or utilizing the change of color shown by a photochromic substance a photochromic process

Other words from photochromic

photochromism \-ˌmiz-əm \ noun

photochromic

noun

Medical Definition of photochromic (Entry 2 of 2)

: a photochromic substance usually used in plural

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