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Home >Information for Patients > Dictionary Index
Dictionary of Cancer Terms
View in Spanish: Fotoactividad
Photoactivity (FOH-toh-ak-TIH-vih-tee)
The effect produced when certain substances are exposed to light. In cancer treatment, some drugs become active when exposed to light and are then able to kill tumor cells.
Source: National Cancer Institute Dictionary of Cancer Terms, available at www.cancer.gov/dictionary.
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22 S. Greene Street, Baltimore, MD 21201
22 S. Greene Street, Baltimore, MD 21201
