rationalization

(noun) the cognitive process of making something seem consistent with or based on reason. Synonyms: rationalisation.

(noun) (psychiatry) a defense mechanism by which your true motivation is concealed by explaining your actions and feelings in a way that is not threatening. Synonyms: rationalisation.

(noun) (mathematics) the simplification of an expression or equation by eliminating radicals without changing the value of the expression or the roots of the equation. Synonyms: rationalisation.

(noun) the organization of a business according to scientific principles of management in order to increase efficiency. Synonyms: rationalisation.

(noun) systematic organization; the act of organizing something according to a system or a rationale. Synonyms: systematization, systematisation, rationalisation.