photosensitive

adjective pho·to·sen·si·tive \ ˌfō-tō-ˈsen(t)-s(ə-)tiv \
|Updated on: 11 Jul 2018

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

photosensitivity

play \ˌfō-tō-ˌsen(t)-sə-ˈti-və-tē\ noun

Examples of photosensitive in a Sentence

  1. paper with a photosensitive coating

Recent Examples of photosensitive from the Web

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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PHOTOSENSITIVE Defined for English Language Learners

photosensitive

Definition of photosensitive for English Language Learners

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


Medical Dictionary

photosensitive

adjective pho·to·sen·si·tive \ ˌfōt-ō-ˈsen(t)-sət-iv, -ˈsen(t)-stiv \

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

photosensitivity

play \-ˌsen(t)-sə-ˈtiv-ət-ē\ noun, plural photosensitivities

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