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

Other Words from photosensitive

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

Examples of photosensitive in a Sentence

paper with a photosensitive coating
Recent Examples on the Web Cells in the retina continue to express the photosensitive protein after a one-time injection of the virus, while physical implants could degrade and stop working, accompanied by risks of infection. Connie Chang Chinchio, Popular Mechanics, 25 Aug. 2022 Lithography tools project ultraviolet light onto photosensitive material on silicon wafers to create a pattern. oregonlive, 17 Aug. 2022 To create the ultrasound probe, the scientists used 3D printing, laser micromachining, and photolithography, in which light is used to create a pattern on a photosensitive material. Wired, 29 July 2022 The scientists were able to prove that photosensitive neuron cells in the retina can respond to light up to five hours after death. Joshua Hawkins, BGR, 16 May 2022 There’s a debate about whether or not cyclists should use flashing lights due to the potential effect on people with photosensitive epilepsy, which is particularly triggered by deep-red colors, like taillights. Joe Lindsey, Outside Online, 7 Apr. 2020 Fun fact: These devices are now bright orange, not black, but were so called back in the day, when the flight recorders used photosensitive material. Peter Debruge, Variety, 5 May 2022 The electromagnetic radiation of an X-ray could indeed do some damage to undeveloped negatives, in particular to high-speed film that’s particularly photosensitive. Eric Griffith, PCMAG, 18 Jan. 2022 Enlarge / Hooks printed with a photosensitive resin can be assembled together with electronics and sensors for light, temperature, and humidity. Jennifer Ouellette, Ars Technica, 27 Dec. 2021 See More

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.

First Known Use of photosensitive

1886, in the meaning defined at sense 1

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The first known use of photosensitive was in 1886

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Last Updated

1 Sep 2022

Cite this Entry

“Photosensitive.” Dictionary, Merriam-Webster, Accessed 26 Sep. 2022.

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More Definitions for photosensitive


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 photosensitive (audio) \ noun, plural photosensitivities

More from Merriam-Webster on photosensitive

Nglish: Translation of photosensitive for Spanish Speakers


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