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Definition of: cathexis
(kə·thek′sis) noun Psychoanal.
1. Concentration of psychic energy upon the self, another person, a phantasy, idea, or object.
2. The investment or charging of an idea or emotion with significance. [<Gk. kathexis holding <kata- thoroughly + echein hold, have; trans. of G besetzung]
a. Cathode.
b. Anode.
c. Vacuum.
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