Definitions for "Psychosexual development"
In Freudian theory, an unvarying sequence of stages of personality development during infancy, childhood, and adolescence, in which gratification shifts from the mouth to the anus and then to the genitals. (21)
In psychoanalytic theory, the description of the progressive stages in the way the child gains pleasure as he grows into adulthood, defined by the zone of the body through which maximal pleasure is derived (oral, anal, genital) and by the object toward which this pleasurable feeling is directed (mother, father, adult sexual partner). See also anal stage, genital stage, oral stage, phallic stage.
Freud's theory that children systematically move through oral, anal, phallic, and latency stages before reaching mature adult sexuality in the genital stage.