obsession(redirected from Obsession (disambiguation))
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Psychiatry a persistent idea or impulse that continually forces its way into consciousness, often associated with anxiety and mental illness
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
Persistence of or anxious preoccupation with an idea or emotion recognized as unreasonable by the individual.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.