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principle of operation definition, principle of operation meaning | English dictionary. principle. n (Psychoanal) the idea that psychological processes and actions are governed by the gratification of needs. n the. the principle that energy and time or position and momentum, cannot both be accurately measured simultaneously.
Definitions & Distinctions. 1  Law is the essence of consciousness expressing in the plane of Force. 2  Principle is the expression of that Law in one aspect of that plane. 3  Theory is a comprehensive description of Law, Principle and Rule. 4  Rule is the Law of the particular.