- physiol a sensation experienced in a part of the body other than the part stimulated
- psychol the subjective sensation of a sense other than the one being stimulated. For example, a sound may evoke sensations of colour
Word Origin and History for synaesthetic
also synesthesia, "sensation in one part of the body produced by stimulus in another," 1881, in some cases via French, from Modern Latin, from Greek syn- "together" (see syn-) + stem aisthe "to feel, perceive." Also psychologically, of the senses (colors having an odor, etc.), from 1891.