Psychoanalysis the unconscious tendency of a child to be attached to the parent of the opposite sex and hostile toward the other parent: its persistence in adult life results in neurotic disorders: orig. restricted to a son's attachment
See Oedipus complex in American Heritage Dictionary 4
noun
In psychoanalysis, a subconscious sexual desire in a child, especially a male child, for the parent of the opposite sex, usually accompanied by hostility to the parent of the same sex.