pho·​to·​chro·​mic | \ ˌfō-tə-ˈkrō-mik How to pronounce photochromic (audio) \

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 How to pronounce photochromic (audio) \ noun

Examples of photochromic in a Sentence

Recent Examples on the Web More importantly, the photochromic lens gets darker or lighter to adapt to the day’s brightness and has all-important anti-fog qualities. Terry Ward, Condé Nast Traveler, "Ski Trip Packing List: All the Essentials for a Weekend On (and Off) the Slopes," 29 Jan. 2020 At the Fendi show the big reveal was a group of photochromic coats created in collaboration with Kunihiko Morinaga, the Anrealage designer who was shortlisted for the 2019 LVMH Prize. New York Times, "At Milan Men’s Week, the War Lives On," 15 Jan. 2020 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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Time Traveler for photochromic

Time Traveler

The first known use of photochromic was in 1881

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Statistics for photochromic

Cite this Entry

“Photochromic.” Dictionary, Merriam-Webster, Accessed 28 Jan. 2021.

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pho·​to·​chro·​mic | \ ˌfōt-ə-ˈkrō-mik How to pronounce photochromic (audio) \

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 How to pronounce photochromic (audio) \ noun



Medical Definition of photochromic (Entry 2 of 2)

: a photochromic substance usually used in plural

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