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Meaning of psychotomimetic

psy•chot•o•mi•met•ic

Pronunciation: (sī-kot"ō-mu-met'ik, -mī-), [key]
— adj.
  1. (of a substance or drug) tending to produce symptoms like those of a psychosis; hallucinatory.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.