Main Entry: pho·to·sen·si·ti·za·tion

Variant(s): also British pho·to·sen·si·ti·sa·tion \-ˌsen(t)-sət-ə-ˈzā-shən, -ˌsen(t)-stə-ˈzā-\

Function: noun

1 : the process of photosensitizing
2 : the condition of being photosensitized ; especially : the development of an abnormal capacity to react to sunlight typically by edematous swelling and dermatitis