phototoxic

adjective pho·to·tox·ic \ ˌfō-tō-ˈtäk-sik \

Definition of phototoxic

1 : rendering the skin susceptible to damage (such as sunburn or blisters) upon exposure to light and especially ultraviolet light
  • phototoxic antibiotics
2 : induced by a phototoxic substance

phototoxicity

play \ˌfō-tō-täk-ˈsi-sə-tē\ noun

Recent Examples of phototoxic from the Web

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

First Known Use of phototoxic

1931

in the meaning defined at sense 1

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Medical Dictionary

phototoxic

adjective pho·to·tox·ic \ ˌfōt-ō-ˈtäk-sik \

medical Definition of phototoxic

1 : rendering the skin susceptible to damage (as sunburn or blisters) upon exposure to light and especially ultraviolet light
  • phototoxic antibiotics
  • a phototoxic topical agent
2 : induced by a phototoxic substance
  • a phototoxic response

phototoxicity

play \-täk-ˈsis-ət-ē\ noun, plural -ties

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