Share this entry

photism Line breaks: phot|ism
Pronunciation: /ˈfəʊtɪz(ə)m/

Definition of photism in English:


A hallucinatory sensation or vision of light.
Example sentences
  • The first painting in which I consciously recorded a photism that I saw during an acupuncture session, called Vision (Fig. 1), was created in 1996.
  • The idea was that if a photism was an automatic consequence of letter identification, then the photism should interfere with naming the ink colour of these letters on incongruent cards.


Late 19th century: from Greek phōtismos, from phōtizein 'to shine', from phōs, phōt- 'light'.

Share this entry


What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources