Pronunciation: (RIH-chuh-wul)

An action or series of actions that is repeated, often in a religious or social setting. In medicine, it may describe a repeated action (such as hand washing) done to relieve feelings of fear, dread, and uneasiness in people who have an obsessive-compulsive disorder.

Source: NCI Dictionary of Cancer Terms

2007-06-21 Date last modified: 2009-07-02