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amnesia

American  
[am-nee-zhuh] / æmˈni ʒə /

noun

  1. loss of a large block of interrelated memories; complete or partial loss of memory caused by brain injury, shock, etc.


amnesia British  
/ æmˈniːzɪˌæk, æmˈniːsɪk, æmˈniːzjə, -ʒjə, -zɪə, -zɪk /

noun

  1. a defect in memory, esp one resulting from pathological cause, such as brain damage or hysteria

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

amnesia Scientific  
/ ăm-nēzhə /
  1. Partial or total loss of memory, usually caused by brain injury or shock.


amnesia Cultural  
  1. A loss of memory, especially one brought on by some distressing or shocking experience.


Discover More

A common variant is selective amnesia; the term is applied to public officials who, when questioned about alleged wrongdoing, profess that they cannot remember.

Other Word Forms

  • amnesiac adjective
  • amnestic adjective

Etymology

Origin of amnesia

1780–90; < New Latin < Greek amnēsía, variant of amnēstía oblivion; perhaps learnedly formed from mnē-, stem of mimnḗskesthai to remember ( mnemonic ) + -s- + -ia -ia. See amnesty