cathexis n 1: (psychoanalysis) the libidinal energy invested in some idea or person or object; "Freud thought of cathexis as a psychic analog of an electrical charge" [syn: {cathexis}, {charge}]
Cathexis \Cath*ex"is\, n. [Gr. ka`qexis, keeping.] 1. (Psychiatry) the process of investing mental, emotional, or libidinal energy or significance in an object, person, or idea. [PJC] 2. (Psychiatry) the emotional or libidinal energy invested in an object, person, or idea. [PJC]