Mental Process
long-term memory
long·term mem·o·ry
Subclass of:
Memory
Definitions related to memory, long-term:
  • (long-term memory) A memory that lasts from a few minutes to decades.
    Harvard Dictionary of Health Terms
    Harvard Medical Publishing, 2011
  • (long term memory) Memory that is retained over a long period of time; thought to be accompanied by structural alterations on two levels of synaptic organization, 1) a change in the number, size and vesicle component of synapse active zones, and 2) a modulation of the total number of synaptic varicosities.
    CRISP Thesaurus
    National Institutes of Health, 2006
  • (long-term memory) The memory process that deals with the storage, retrieval and modification of information a long time (typically weeks, months or years) after receiving that information. This type of memory is typically dependent on gene transcription regulated by second messenger activation.
    Gene Ontology Dictionary
    Gene Ontology Consortium, 2021
  • Remembrance of information from 3 or more years previously.
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2025
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This content should not be used in place of medically-reviewed decision support reference material or professional medical advice. Some terms may have alternate or updated definitions not reflected in this set. The definitions on this page should not be considered complete or up to date.