former measure of the United States economy; the total market value of goods and services produced by all citizens and capital during a given period (usually 1 yr)
(biology) the field of science concerned with processes of communication and control (especially the comparison of these processes in biological and artificial systems)
a noticeable deterioration in performance or quality; "the team went into a slump"; "a gradual slack in output"; "a drop-off in attendance"; "a falloff in quality"
fall heavily or suddenly; decline markedly; "The real estate market fell off"
fall or sink heavily; "He slumped onto the couch"; "My spirits sank"
the organization of a business according to scientific principles of management in order to increase efficiency
(mathematics) the simplification of an expression or equation by eliminating radicals without changing the value of the expression or the roots of the equation
the cognitive process of making something seem consistent with or based on reason
(psychiatry) a defense mechanism by which your true motivation is concealed by explaining your actions and feelings in a way that is not threatening