zooscopyhttp://www.oed.com/dictionary/zooscopy_n%3Ftab%3Dmeaning_and_usezooscopy, n.
Revised 2017

zooscopynoun

Psychiatry.
  1. 1891–
    A hallucination in which animals are visualized; a condition characterized by such hallucinations; cf. zooscopic adj.
    1. 1891
      Zoöscopy, a kind of hallucination in which imaginary animal forms are perceived.
      Century Dictionary
    2. 1933
      He was a chronic drinker, but had hitherto only exhibited the minor mental symptoms of alcoholism—nightmares, nocturnal zooscopy and neurasthenia.
      H. Devine, Recent Adv. Psychiatry (ed. 2) vi. 86
    3. 2013
      Rational thought might ascribe these scenes—for which there is a term, zooscopy, a form of mental delusion in which the sufferer sees imaginary animals—to isolation and malnutrition.
      P. Hoare, Sea Inside ii. 89

Originally published as part of the entry for zoo-, comb. form

zoo-, comb. form was revised in June 2017.