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

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

Nursing Central is the award-winning, complete mobile solution for nurses and students. Look up information on diseases, tests, and procedures; then consult the database with 5,000+ drugs or refer to 65,000+ dictionary terms. Explore these free sample topics:

Nursing Central

-- 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 --