Longman Dictionary of Contemporary English homepage

Date: 1700-1800
Language: Modern Latin
Origin: Greek, 'forgetfulness', probably from amnestia; AMNESTY

amnesia

 noun
     
Related topics: Illness and Disability
am‧ne‧si‧a [uncountable]
MI the medical condition of not being able to remember anything
—amnesiac noun [countable]
Definition from the Longman Dictionary of Contemporary English
Advanced Learner's Dictionary.

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