of, pertaining to, or constituting visual imagery vividly experienced and readily reproducible with great accuracy and in great detail.
of or pertaining to eidos.

1920–25; < Greek eidētikós, equivalent to eîd(os) eidos + -ētikos -etic

noneidetic, adjective
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World English Dictionary
eidetic (aɪˈdɛtɪk)
1.  (of visual, or sometimes auditory, images) exceptionally vivid and allowing detailed recall of something previously perceived: thought to be common in children
2.  relating to or subject to such imagery
[C20: from Greek eidētikos, from eidos shape, form]

Collins English Dictionary - Complete & Unabridged 10th Edition
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Word Origin & History

"pertaining to the faculty of projecting images," 1924, from Ger. eidetisch, coined by Ger. psychologist Erich Jaensch (1883-1940), from Gk. eidetikos "pertaining to images," also "pertaining to knowledge," from eidesis "knowledge," from eidos "form, shape" (see -oid).
Online Etymology Dictionary, © 2010 Douglas Harper
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Example sentences
Eidetic images differ from other forms of visual imagery in several important ways.
His tales were produced with a combination of will, eidetic memory and emotional immaturity.
Sensory information storage is also known as sensory register, sensory store, and eidetic and echoic memory.
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