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photosensitivity

American  
[foh-tuh-sen-si-tiv-i-tee] / ˌfoʊ təˌsɛn sɪˈtɪv ɪ ti /

noun

  1. the quality of being photosensitive.

  2. abnormal sensitivity of the skin to ultraviolet light, usually following exposure to certain oral or topical drugs or to other sensitizing chemicals and resulting in accelerated burning and blistering of the skin.


photosensitivity Scientific  
/ fō′tō-sĕn′sĭ-tĭvĭ-tē /
  1. Sensitivity or responsiveness to light.

  2. An abnormally heightened response, especially of the skin or eyes, to sunlight or ultraviolet radiation, caused by certain disorders, medications, or chemicals.


Etymology

Origin of photosensitivity

First recorded in 1915–20; photo- + sensitivity

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

"Some of those same mechanisms, like increasing photosensitivity or causing oxidative stress, could theoretically contribute to melanoma development."

From Science Daily

Researchers program strands of DNA to "direct" the self-assembly process towards molecular arrangements that give rise to beneficial properties, such as electrical conductivity, photosensitivity, and magnetism.

From Science Daily

Amlodipine, an antihypertensive drug, was known to cause this kind of photosensitivity, but the patient had started this medicine recently, months after he first mentioned the rash.

From New York Times

The photosensitivity side effect didn’t bother me for a while, but I eventually reached a point where light felt too bright to my eyes, and I had to stop taking the herb.

From Seattle Times

In addition, some chronic diseases and drug regimens, including a few acne-fighting medications and antibiotics, trigger photosensitivity.

From Washington Post