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Medical Term:

fixed idea


  1. an exaggerated notion, belief, or delusion that persists, despite evidence to the contrary, and controls the mind;
  2. the obstinate conviction of a psychotic person regarding the correctness of a delusion.

Synonym(s): idée fixe, overvalued idea

© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.