
the development of abnormally heightened reactivity of the skin to sunlight.
Found on
http://users.ugent.be/~rvdstich/eugloss/DIC/dictio68.html

the process of initiating a reaction through the use of a substance capable of absorbing light and transferring the energy to the desired reactants. ... [5 related articles]
Found on
http://www.britannica.com/eb/a-z/p/61

process by which a substance or a system becomes more susceptible to photoeffects by the action of another substance or system
Found on
http://www.electropedia.org/iev/iev.nsf/display?openform&ievref=845-06-08

(fo″to-sen″sĭ-tĭ-za´shәn) the development of abnormally heightened photosensitivity of the skin or eyes to sunlight.
Found on
http://www.encyclo.co.uk/local/21001

Type: Term Pronunciation: fō′tō-sen-si-ti-zā′shŭn Definitions: 1. Sensitization of the skin to light, usually due to the action of certain drugs, plants, or other substances; may occur shortly after administration of the drug (phototoxic sensitivity), or may occur only after a latent period of from days to months (ph...
Found on
http://www.medilexicon.com/medicaldictionary.php?t=68668

A severe skin reaction when the animal is exposed to sunlight.
Found on
http://www.sheepusa.org/

Clinical syndrome resulting from excessive exposure to ultraviolet radiation (sunlight).
Found on
http://www.thehorse.com/Glossary.xhtml?L=P

photosensitization 1. The process of photosensitizing. 2. Abnormally heightened reactivity of the skin to sunlight. Etymologically related 'light, shine, glow' word families: ethero-; fulg-; luco-; lumen-, lum-; luna, luni-; lustr-; phengo-; pheno-; phospho-; scinti-, scintill-; spl...
Found on
http://www.wordinfo.info/words/index/info/view_unit/2803/13

The process of the skin becoming sensitive to sunlight by the presence of certain chemicals on the skin. Exposure to sunlight after use can potentially cause inflammation. Cold pressed citrus oils are considered photosensitizing, and should not be used on the skin if prolonged exposure to sunlight is expected within 12 hours of application.
Found on
https://www.timelessessentialoils.com/pages/timeless-holistic-health-glossa
No exact match found.