pho·​to·​sen·​si·​tive | \ ˌfō-tō-ˈsen(t)-s(ə-)tiv How to pronounce photosensitive (audio) \

Definition of photosensitive

1 : sensitive to the action of radiant energy photosensitive paper
2 : being or caused by an abnormal reaction to sunlight photosensitive rashes

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Other Words from photosensitive

photosensitivity \ ˌfō-​tō-​ˌsen(t)-​sə-​ˈti-​və-​tē How to pronounce photosensitivity (audio) \ noun

Examples of photosensitive in a Sentence

paper with a photosensitive coating

Recent Examples on the Web

Exposing photosensitive skin to sunlight can also increase risk for cancer. Lindsey Murray, Good Housekeeping, "[UPDATED] Woman Claims She Received Horrific Burns After Using Essential Oils," 28 Apr. 2017 These pictures produced with photosensitive materials, but without a camera, expanded the Bauhaus’s vision of photography as a way of imagining new worlds. Tobias Grey, WSJ, "Two by Two," 14 Sep. 2018 Early film used photosensitive chemicals placed on a nitrate base, which made the film extremely flammable. Joe Pappalardo, Popular Mechanics, "There Are Secrets in the Texas Theatre," 25 May 2018 Certain frequencies of light can trigger seizures for photosensitive epileptics, about 3 percent of those with epilepsy. Amanda Svachula, New York Times, "‘Incredibles 2’ Moviegoers Warned About Possible Seizures," 18 June 2018 As the disease advanced, people displayed a symmetrical photosensitive rash across their limbs, neck and face. Kristin Baird Rattini, Discover Magazine, "The American South's Deadly Diet," 13 Feb. 2018 In a regular camera there is a lens that focuses light on a photosensitive medium like film. Jennifer Nalewicki, Smithsonian, "Explore the Subterranean Chambers of the World’s Longest-Operating Hologram Gallery," 9 Feb. 2018 This includes ipRGCs, or intrinsically photosensitive retinal ganglion cells. Brittany Nader,, "University of Akron biology professor, team of scientists make breakthrough discovery on vision," 17 Jan. 2018 Light falls onto an array of photosensitive silicon nanowires that function as photoreceptor cells. Bradley J. Fikes,, "Retinal prosthesis could enable blind to see shapes, even text," 5 Sep. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'photosensitive.' 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 photosensitive

1886, in the meaning defined at sense 1

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Time Traveler for photosensitive

The first known use of photosensitive was in 1886

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English Language Learners Definition of photosensitive

technical : reacting to light by changing color, creating electricity, etc.


pho·​to·​sen·​si·​tive | \ ˌfōt-ō-ˈsen(t)-sət-iv, -ˈsen(t)-stiv How to pronounce photosensitive (audio) \

Medical Definition of photosensitive

1 : sensitive or sensitized to the action of radiant energy photosensitive paper
2 : being or caused by an abnormal reaction to sunlight photosensitive rashes

Other Words from photosensitive

photosensitivity \ -​ˌsen(t)-​sə-​ˈtiv-​ət-​ē How to pronounce photosensitivity (audio) \ noun, plural photosensitivities

More from Merriam-Webster on photosensitive

Nglish: Translation of photosensitive for Spanish Speakers

Comments on photosensitive

What made you want to look up photosensitive? Please tell us where you read or heard it (including the quote, if possible).


to wander slowly or to speak indistinctly

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