[ sin-uh s-thee-zhuh, -zhee-uh, -zee-uh ]
/ ˌsɪn əsˈθi ʒə, -ʒi ə, -zi ə /


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.

Nearby words

  1. synergistic,
  2. synergistic muscles,
  3. synergize,
  4. synergy,
  5. synesis,
  6. synesthesialgia,
  7. synesthetic,
  8. synfuel,
  9. synfuels,
  10. syngamic

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 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for synesthesia

British Dictionary definitions for synesthesia


/ (ˌsɪniːsˈθiːzɪə) /


the usual US spelling of synaesthesia
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

Medicine definitions for synesthesia


[ sĭn′ĭs-thēzhə ]


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.
A sensation felt in one part of the body as a result of stimulus that is applied to another, as in referred pain.
Related formssyn′es•thetic (-thĕtĭk) adj.

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.