NCI Dictionary of Cancer Terms
The NCI Dictionary of Cancer Terms features 8,089 terms related to cancer and medicine.
- listen (FOH-toh-tok-SIH-sih-tee)
- A condition in which the skin or eyes become very sensitive to sunlight or other forms of light. It can be caused by taking certain drugs, or rubbing certain essential oils (scented liquid taken from plants) or other topical agents into the skin. Phototoxicity causes sunburn, blisters, and other skin problems.