Akademik

Long-term memory
A system for permanently storing, managing, and retrieving information for later use. Items of information stored as long-term memory may be available for a lifetime. Long-term memory is in contrast to short-term memory (as I recall).

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long-term memory n memory that involves the storage and recall of information over a long period of time (as days, weeks, or years)

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memory that is retained over long periods of time.

Medical dictionary. 2011.