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Partial or total loss of memory, usually resulting from shock, psychological disturbance, brain injury, or illness.

[Greek amnēsiā, forgetfulness, probably alteration of amnēstiā, from amnēstos, not remembered : a-, not; see a-1 + mimnēskein, mnē-, to remember; see men- in Indo-European roots.]

am·ne′si·ac′ (-nē′zē-ăk′, -zhē-ăk′), am·ne′sic (-zĭk, -sĭk) n. & adj.
am·nes′tic (-nĕs′tĭk) adj.


(Medicine) causing amnesia
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.amnestic - of or relating to or caused by amnesiaamnestic - of or relating to or caused by amnesia
References in periodicals archive ?
56] also reported that, in mild AD patients, those with amnestic MCI, and cognitively normal elderly subjects, there was no significant difference between groups with and without CMB, indicating that CMB is not a good candidate neuroimaging biomarker for these diseases, especially in their early phases.
The new study investigated people with amnestic MCI.
Amnestic MCI single domain, if only memory is affected.
Relationship between herpes simplex virus-1-specific antibody titers and cortical brain damage in Alzheimer's disease and amnestic mild cognitive impairment.
The feasibility of utilizing plasma MiRNA107 and BACE1 messenger RNA gene expression for clinical diagnosis of amnestic mild cognitive impairment.
The effects of healthy aging, amnestic mild cognitive impairment, and Alzheimer's disease on recollection and familiarity: A meta-analytic review.
These cases tend to occur at a younger age and often have a different clinical course than the traditional amnestic variant of Alzheimer's disease.
Only when they suddenly return to their former selves do they recall the time antedating the onset of fugue, but then they remain amnestic for the period of fugue itself.
The authors categorized this type of event as "para-suicidal amnestic behavior," although "sleep-related pseudo-suicidal behavior" might be a better term for this type of parasomnia because of its occurrence during sleep and non-deliberate nature.
In 2016, a human study showed that taking 1,000 mg of metformin twice daily for 12 months improved memory recall in a group of older adults with a condition called amnestic mild cognitive impairment (a memory-stealing predecessor of Alzheimer's).
Conclusion: Ketamine, which has analgesic, hypnotic and amnestic effects and which does not alter pharyngeal and laryngeal reflexes thus minimizes aspiration possibility, is a safe and effective anesthetic agent for tooth extractions of the pediatric population under sedoanalgesia.
Significant predictors of Alzheimer's disease included older age, higher educational level, absence of, hypertension, and a lower K-MMSE score, as well as the presence of amnestic mild cognitive impairment, the investigators noted.