delusion is a topic covered in the Taber's Medical Dictionary.

To view the entire topic, please or purchase a subscription.

Taber’s Cyclopedic Medical Dictionary Online + Mobile powered by Unbound Medicine. Find 65,000 medical and nursing definitions. Download to iPhone, iPad, and Android. Explore these free sample topics:

Taber’s Online

-- The first section of this topic is shown below --

(dĕ-loo′zhŏn )

[L. deludere, to cheat]
A fixed, false belief that is not grounded in reality and persists despite clear evidence that it is mistaken. It is seen most often in psychoses, in which patients may not be able to distinguish their own unverified thoughts, fears, or feelings from reality. It differs from hallucination in that hallucination involves the false excitation of one or more senses. The most serious delusions are those that cause patients to harm others or themselves, e.g., fear of being poisoned may cause the patient to refuse food. Delusions may lead to suicide or self-injury. False beliefs include being persecuted or being guilty of an unpardonable sin.
SEE: hallucination; SEE: illusion
delusional (di-loo′zhŏn-ăl), adj.

-- To view the remaining sections of this topic, please or purchase a subscription --