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1. Oxford American Dictionary

   principle

   • IPA[ˈprinsəp(ə)l]

   美式

   • n.
     a fundamental truth or proposition that serves as the foundation for a system of belief or behavior or for a chain of reasoning；a rule or belief governing one's personal behavior

   • noun: principle, plural noun: principles

2. • 釋義
   • 相關詞
   • 片語

   n.

   名詞

   • 1. a fundamental truth or proposition that serves as the foundation for a system of belief or behavior or for a chain of reasoning the basic principles of Christianity 同義詞 truth, proposition, concept, idea, theory, ... 更多postulate, assumption, basis, fundamental, essence, essential, philosophy
   • ▪ a rule or belief governing one's personal behavior struggling to be true to their own principles she resigned over a matter of principle 同義詞 morals, morality, moral standards, moral values, ethics, ... 更多code of ethics, beliefs, credo, ideals, standards, integrity, uprightness, high-mindedness, righteousness, virtue, probity, rectitude, sense of honor, honor, decency, conscience, sense of duty, scruples
   • ▪ morally correct behavior and attitudes a man of principle 同義詞 morals, morality, moral standards, moral values, ethics, ... 更多code of ethics, beliefs, credo, ideals, standards, integrity, uprightness, high-mindedness, righteousness, virtue, probity, rectitude, sense of honor, honor, decency, conscience, sense of duty, scruples
   • 2. a general scientific theorem or law that has numerous special applications across a wide field.
   • ▪ a natural law forming the basis for the construction or working of a machine these machines all operate on the same general principle
   • 3. a fundamental source or basis of something the first principle of all things was water
   • ▪ a fundamental quality or attribute determining the nature of something; an essence the combination of male and female principles
   • ▪ an active or characteristic constituent of a substance, obtained by simple analysis or separation the active principle in the medulla is epinephrine

   pleasure principle

   • n.
     the instinctive drive to seek pleasure and avoid pain, expressed by the id as a basic ...

   Oxford Dictionary

   precautionary principle

   • n.
     the principle that the introduction of a new product or process whose ultimate effects are ...

   Oxford American Dictionary

   anthropic principle

   • n.
     the cosmological principle that theories of the universe are constrained by the necessity to ...

   Oxford American Dictionary

   reality principle

   • n.
     the ego's control of the pleasure-seeking activity of the id in order to meet the demands ...

   Oxford American Dictionary

   uncertainty principle

   • n.
     the principle that the momentum and position of a particle cannot both be precisely determined ...

   Oxford American Dictionary

   uncertainty principle

   • n.
     the principle that the momentum and position of a particle cannot both be precisely determined ...

   Oxford Dictionary

   Archimedes' principle

   • n.
     a law stating that a body totally or partially immersed in a fluid is subject to an upward ...

   Oxford Dictionary

   equivalence principle

   • n.
     a basic postulate of general relativity, stating that at any point of space–time the effects of ...

   Oxford Dictionary

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   片語

   • in principle
   • on principle
3. • 更多解釋

   principle

   • IPA[ˈprɪnsɪpl]

   英式

   • n.
     a fundamental truth or proposition that serves as the foundation for a system of belief or ... the basic principles of justice

   Oxford Dictionary