photism: Meaning and Definition of

pho•tism

Pronunciation: (fō'tiz-um), [key]
— n. Psychol.
  1. a form of synesthesia in which a visual sensation, as of color or form, is produced by the sense of touch, hearing, etc.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.