pho·​to·​sen·​si·​tize | \ ˌfō-tō-ˈsen(t)-sə-ˌtīz How to pronounce photosensitize (audio) \
photosensitized; photosensitizing; photosensitizes

Definition of photosensitize

transitive verb

: to sensitize to the influence of radiant energy and especially light

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Other Words from photosensitize

photosensitizer noun

Examples of photosensitize in a Sentence

Recent Examples on the Web

Its sap contains toxic chemicals known as photosensitizing furanocoumarins. Caitlin O'kane, CBS News, "Giant hogweed, plant that causes blindness and third-degree burns, discovered in Virginia," 18 June 2018

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

First Known Use of photosensitize

circa 1923, in the meaning defined above

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Time Traveler for photosensitize

The first known use of photosensitize was circa 1923

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More Definitions for photosensitize


transitive verb
pho·​to·​sen·​si·​tize | \ -ˈsen(t)-sə-ˌtīz How to pronounce photosensitize (audio) \
variants: also British photosensitise
photosensitized also British photosensitised; photosensitizing also British photosensitising

Medical Definition of photosensitize

: to make sensitive to the influence of radiant energy and especially light

Other Words from photosensitize

photosensitizer noun

Comments on photosensitize

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


appealing forcibly to the mind or reason

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