/sin'euhs thee"zheuh, -zhee euh, -zee euh/, n.a sensation produced in one modality when a stimulus is applied to another modality, as when the hearing of a certain sound induces the visualization of a certain color.Also, synaesthesia.[1890-95; < NL; see SYN-, ESTHESIA]
* * *a condition in which one type of sensory stimulation creates perception in another sense. The most common form of synesthesia is called “coloured hearing,” where a person experiences a visual sensation when receiving an auditory signal (for example, hearing the musical tone C and seeing the colour red). Although tone-colour relationships are not identical for all people, there are general uniformities: the deeper a musical note, the darker the colour. Similar colour perceptions, called photisms, may accompany sensations of taste, touch, pain, smell, or temperature. Synesthesia has been used as a literary device by poets as diverse as Edgar Allan Poe, Arthur Rimbaud, Hart Crane, and Dame Edith Sitwell.
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