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
phototoxicityplay \ˌfō-tō-täk-ˈsi-sə-tē\ noun
Recent Examples of phototoxic from the Web
And then there's the more common ruta graveolens, a phototoxic plant with sap that can make your hands blister in bright sunlight, and so on and so on.
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
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\-täk-ˈsis-ət-ē\play noun plural
Seen and Heard
What made you want to look up phototoxic? Please tell us where you read or heard it (including the quote, if possible).