Skip to Content
Medical Term:


Pronunciation: si'ke-del'ik


  1. Pertaining to a rather imprecise category of drugs with mainly central nervous system action, and with effects said to be the expansion or heightening of consciousness, LSD, hashish, mescaline, psilocybin.
  2. A hallucinogenic substance, visual display, music, or other sensory stimulus having such action.

Synonym(s): hallucinogenic

[psyche- + G. deloo, to manifest]

© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.