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Home >Information for Patients > Dictionary Index

Dictionary of Cancer Terms

View in Spanish: Pensamiento interferente

Interfering thought (IN-ter-FEER-ing thawt)
An unpleasant memory or idea that occurs often in a person’s everyday thoughts and keeps him or her from thinking about other things. Interfering thoughts can make sleep difficult and make a person unable to carry out daily activities. Also called intrusive thought.

Source: National Cancer Institute Dictionary of Cancer Terms, available at www.cancer.gov/dictionary.