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oneirophrenia

(ō-nī′rə-frēnē-ə, -frĕnē-ə)
n.
  1. A mental state that is characterized by hallucinations and other disturbances and is associated with prolonged deprivation of sleep, sensory isolation, or psychoactive drugs.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.