Amnesia Definition

ăm-nēzhə
noun
Partial or total loss of memory, usually resulting from shock, psychological disturbance, brain injury, or illness.
American Heritage
Partial or total loss of memory caused as by brain injury or by shock.
Webster's New World
Loss of memory, usually resulting from shock, psychological disturbance, brain injury, or illness.
American Heritage Medicine
Amnesia is defined as when a person conveniently pretends to not remember something since recalling it only works against them in some manner.
When a teenager tells their parents they will clean up their room, and when called on not doing it they claim to not remember having said such a thing, it is an example of amnesia.
YourDictionary
The definition of amnesia is a medical condition when a person loses his entire memory or part of his memory; it is often caused by being extremely sick or having a brain injury.
An example of amnesia is when a person is in a car accident where they injured their head, and when they wake up at the hospital they can’t remember who they are or anything about their life.
YourDictionary
Synonyms:
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other
Partial or total loss of memory, usually caused by brain injury or shock.
American Heritage Science

Other Word Forms of Amnesia

Noun

Singular:
amnesia
Plural:
amnesi, amnesias

Origin of Amnesia

  • Greek amnēsiā forgetfulness probably alteration of amnēstiā from amnēstos not remembered a- not a–1 mimnēskein mnē- to remember men-1 in Indo-European roots

    From American Heritage Dictionary of the English Language, 5th Edition

  • From modified Latin amnesia, from Ancient Greek ἀμνησία (amnēsia, “forgetfulness”).

    From Wiktionary

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