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synaesthesia

[sin-is-thee-zhuh, -zhee-uh, -zee-uh]
noun
  1. synesthesia.
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Related formssyn·aes·thet·ic [sin-is-thet-ik] /ˌsɪn ɪsˈθɛt ɪk/, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for synaesthesia

synaesthesia

US synesthesia

noun
  1. physiol a sensation experienced in a part of the body other than the part stimulated
  2. psychol the subjective sensation of a sense other than the one being stimulated. For example, a sound may evoke sensations of colour
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Derived Formssynaesthetic or US synesthetic (ˌsɪniːsˈθɛtɪk), adjective

Word Origin

from New Latin, from syn- + -esthesia, from Greek aisthēsis sensation
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for synaesthesia

n.

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.

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Online Etymology Dictionary, © 2010 Douglas Harper