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Medical Term:


Pronunciation: dĕ-lir′ē-ŭm, dĕ-lir′ē-ă

Definition: An altered state of consciousness, consisting of confusion, distractibility, disorientation, disordered thinking and memory, defective perception (illusions and hallucinations), prominent hyperactivity, agitation, and autonomic nervous system overactivity; caused by illness, medication, or toxic, structural, and metabolic disorders.

[L. fr. deliro, to be crazy, fr. de- + lira, a furrow (i.e., go out of the furrow)]