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synesthesia

[sin-uh s-thee-zhuh, -zhee-uh, -zee-uh]
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noun
  1. 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.
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Also synaesthesia.

Origin of synesthesia

From New Latin, dating back to 1890–95; see origin at syn-, esthesia
Related formssyn·es·thete [sin-uh s-theet] /ˈsɪn əsˌθit/, nounsyn·es·thet·ic [sin-uh s-thet-ik] /ˌsɪn əsˈθɛt ɪk/, adjectivenon·syn·es·thet·ic, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for synesthesia

synesthesia

noun
  1. the usual US spelling of synaesthesia
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Derived Formssynesthetic (ˌsɪniːsˈθɛtɪk), adjective
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
synesthesia in Medicine

synesthesia

(sĭn′ĭs-thē′zhə)
n.
  1. A condition in which one type of stimulation evokes the sensation of another, as when the hearing of a sound produces the visualization of a color.
  2. A sensation felt in one part of the body as a result of stimulus that is applied to another, as in referred pain.
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Related formssyn′es•thet′ic (-thĕt′ĭk) adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.