| delusional | Of or pertaining to delusions; as, delusional monomania. Source: Websters Dictionary (01 Mar 1998) |
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| delusional disorder | A severe mental disorder characterised by the presence of delusions. The delusions may be related to paranoid, grandiose, somatic, or erotic themes. (05 Mar 2000) |
| delusional powers or abilities | Fixed false beliefs, which are not amenable to arguments or facts to the contrary and which are not shared by others of similar cultural background. A characteristic of schizophrenia. (27 Sep 1997) |
| permanent dominant idea | An exaggerated notion, belief, or delusion that persists, despite evidence to the contrary, and controls the mind, the obstinate conviction of a psychotic person regarding the correctness of his delusion. Synonym: idee fixe, overvalued idea, permanent dominant idea. (05 Mar 2000) |
| compulsive idea | A fixed and repetitively recurring idea. (05 Mar 2000) |
| hyperquantivalent idea | An idea that dominates all thought and cannot easily be changed. (05 Mar 2000) |
| dominant idea | An idea that governs all one's actions and thoughts. (05 Mar 2000) |
| idea | Any mental image or concept. Origin: G. Semblance (05 Mar 2000) |
| idea of reference | The misinterpretation that other people's statements or acts or neutral objects in the environment are directed toward one's self when, in fact, they are not. (05 Mar 2000) |
| overvalued idea | An exaggerated notion, belief, or delusion that persists, despite evidence to the contrary, and controls the mind, the obstinate conviction of a psychotic person regarding the correctness of his delusion. Synonym: idee fixe, overvalued idea, permanent dominant idea. (05 Mar 2000) |
| fixed idea | An exaggerated notion, belief, or delusion that persists, despite evidence to the contrary, and controls the mind, the obstinate conviction of a psychotic person regarding the correctness of his delusion. Synonym: idee fixe, overvalued idea, permanent dominant idea. (05 Mar 2000) |