Glossary: intracavitary radiation therapy

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intracavitary radiation therapy (IN-truh-KA-vih-tayr-ee RAY-dee-AY-shun THAYR-uh-pee)
A type of internal radiation therapy in which radioactive material sealed in needles, seeds, wires, or catheters is placed directly into a body cavity such as the chest cavity or the vagina.
Source: The National Cancer Institute's Dictionary of Cancer Terms
(http://www.cancer.gov/dictionary)