retrograde-amnesia

retrograde amnesia

noun
a memory disorder characterized by an inability to remember events or experiences that occurred before a significant point in time.

Origin:
1930–35

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World English Dictionary
retrograde amnesia
 
n
Compare anterograde amnesia amnesia caused by a trauma such as concussion, in which the memory loss relates to material learnt before the trauma

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Medical Dictionary

retrograde amnesia n.
A condition in which events that occurred before the onset of amnesia cannot be recalled.

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