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pho·to·sen·si·tiv·i·ty AHD[fō'tō-sĕn'sĭ-tĭvʹĭ-tē] D.J.[ˌfəʊtəʊˌsensɪˈtɪvɪtiː]K.K.[ˌfotoˌsɛnsɪˈtɪvɪti]n.（名词）pl. pho.to.sen.si.tiv.i.ties 【复数】- Sensitivity or responsiveness to light.感光性：对光的敏感和感应性
- Medicine An abnormally heightened response, especially of the skin, to sunlight or ultraviolet radiation, caused by certain disorders or chemicals and characterized by a toxic or allergic reaction.【医学】 感光过敏的：对光线或紫外线辐射不正常的高度感应，尤指皮肤，是由某些失调或化学物质引起的，症状为中毒或过敏反应
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