Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun An allergy that is activated by light

Etymologies

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Examples

  • As with poison ivy, for a photoallergy to develop a person must have exposure to the substance that resulted in no visible reaction, but alerted the immune system to recognize future exposures as something foreign.

    NYT > Home Page By JANE E. BRODY 2011

  • As with poison ivy, for a photoallergy to develop a person must have exposure to the substance that resulted in no visible reaction, but alerted the immune system to recognize future exposures as something foreign.

    NYT > Home Page By JANE E. BRODY 2011

  • As with poison ivy, for a photoallergy to develop a person must have exposure to the substance that resulted in no visible reaction, but alerted the immune system to recognize future exposures as something foreign.

    NYT > Home Page By JANE E. BRODY 2011

  • Phototoxicity, photoallergy, and contact sensitization of nitro musk perfume raw materials.

    WHAT REALLY HAPPENED 2008

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