photosensitization

noun

1
: the process of photosensitizing
2
: the condition of being photosensitized
especially : the development of an abnormal capacity to react to sunlight typically by edematous swelling and dermatitis

Examples of photosensitization in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Some essential oils contain furocoumarins, a special class of constituent that can cause photosensitization of the skin. — Lindsey Murray, Good Housekeeping, 28 Apr. 2017

Word History

First Known Use

circa 1923, in the meaning defined at sense 1

Time Traveler
The first known use of photosensitization was circa 1923

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Cite this Entry

“Photosensitization.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/photosensitization. Accessed 29 Sep. 2026.

Medical Definition

photosensitization

noun
pho·​to·​sen·​si·​ti·​za·​tion
1
: the process of photosensitizing
2
: the condition of being photosensitized
especially : the development of an abnormal capacity to react to sunlight typically by edematous swelling and dermatitis

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