mneme (n.) mne·me
  1. Psychology the retentive basis or basic principle in a mind or organism accounting for memory, persisting effect of memory of past events.
A unit of memory and taken from the Greek mimneskesthai, to remember (and ultimately from Mnemosyne, the Greek goddess of memory.)
  2. (capitolized) Class. Myth. the Muse of memory, one of the original three Muses. Cf."Aoede, Melete."

mnemic, a. mnemist