Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. Exceptionally exact or vivid memory, especially as associated with certain mental illnesses.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. An elevated level of memory recall.

from The Century Dictionary and Cyclopedia

  • n. Unusual power of recollection.

Etymologies

hyper- + (a)mnesia.
(American Heritage® Dictionary of the English Language, Fourth Edition)
From hyper- and the root mnesia relating to memory. (Wiktionary)

Examples

Comments

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  • I remember when whichbe made that comment. He was wearing a blue suit and typing with one hand while holding a cup of echinacea herbal tea in the other. One ant, who gave the alias of 'Joe' but refused to reveal his fixed abode, was crawling up his left leg.

    November 30, 2008

  • The condition of having an unusually vivid or precise memory.

    August 29, 2008