DuckCorp Dico

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1.                 From The Collaborative International Dictionary of English v.0.48:
                   
   
   
                   
                     
   LTM \LTM\ n. (Psychology, Neurophysiology)
      long-term memory, the term for the set of neurons and neural
      processes responsible for the general store of information
      remembered for more than a day.
      Syn: long-term memory.
           [WordNet 1.5 +PJC]