[ hahy-perm-nee-zhuh ]
/ ˌhaɪ pərmˈni ʒə /


the condition of having an unusually vivid or precise memory.


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Origin of hypermnesia

First recorded in 1880–90; hyper- + (a)mnesia

OTHER WORDS FROM hypermnesia

hy·perm·ne·sic [‐nee-sik, ‐zik] /‐ˈni sɪk, ‐zɪk/, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for hypermnesia

  • If the personal memory be over-excited, exalt, we have hypermnesia.

  • The hypermnesia of the dream and the resort to infantile material have become main supports in our theory.

    Dream Psychology|Sigmund Freud

British Dictionary definitions for hypermnesia

/ (ˌhaɪpəmˈniːzɪə) /


psychol an unusually good ability to remember, found in some mental disorders and possibly in hypnosis

Word Origin for hypermnesia

C20: New Latin, from hyper- + -mnesia, formed on the model of amnesia
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

Medical definitions for hypermnesia

[ hī′pərm-nēzhə ]


Exceptionally exact or vivid memory, especially as associated with certain mental illnesses.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.