Etymology : Middle English, modification of Middle French principe, from Latin principium beginning, from princip-, princeps initiator; more at PRINCE
Pronunciation : prin(t)-s(&-)p&l, -s&a
Function : noun
Date : 14th century
1. doctrine, tenet, precept; fundamental law, primary law on which other laws are based. principle\prin"ci*ple\ , n. [f. principe, l. principium beginning, foundation, fr. princeps, -cipis. see:
prince.].
2. beginning; commencement. [obs.] doubting sad end of principle unsound.
3. a source, or origin; that from which anything proceeds; fundamental substance or energy; primordial substance; ultimate element, or cause. the soul of man is an active principle.
4. an original faculty or endowment. nature in your principles hath set [benignity]. those active principles whose direct and ultimate object is the communication either of enjoyment or suffering.
5. a fundamental truth; a comprehensive law or doctrine, from which others are derived, or on which others are founded; a general truth; an elementary proposition; a maxim; an axiom; a postulate. therefore, leaving the principles of the doctrine of christ, let us go on unto perfection. vi.
6. a good principle, not rightly understood, may prove as hurtful as a bad.
7. a settled rule of action; a governing law of conduct; an opinion or belief which exercises a directing influence on the life and behavior; a rule (usually, a right rule) of conduct consistently directing one's actions; as, a person of no principle. all kinds of dishonesty destroy our pretenses to an honest principle of mind.
8. (chem.) any original inherent constituent which characterizes a substance, or gives it its essential properties, and which can usually be separated by analysis; -- applied especially to drugs, plant extracts, etc. cathartine is the bitter, purgative principle of senna. --gregory.
9. Beginning; commencement.
10. A source, or origin; that from which anything proceeds; fundamental substance or energy; primordial substance; ultimate element, or cause.
11. An original faculty or endowment.
12. A fundamental truth; a comprehensive law or doctrine, from which others are derived, or on which others are founded; a general truth; an elementary proposition; a maxim; an axiom; a postulate.
13. A settled rule of action; a governing law of conduct; an opinion or belief which exercises a directing influence on the life and behavior; a rule of conduct consistently directing one's actions; as, a person of no principle.
14. Any original inherent constituent which characterizes a substance, or gives it its essential properties, and which can usually be separated by analysis; applied especially to drugs, plant extracts, etc.
15. To equip with principles; to establish, or fix, in certain principles; to impress with any tenet, or rule of conduct, good or ill. a basic truth or law or assumption; "the principles of democracy" a rule or law concerning a natural phenomenon or the function of a complex system; "the principle of the conservation of mass"; "the principle of jet propulsion"; "the right-hand rule for inductive fields" a basic generalization that is accepted as true and that can be used as a basis for reasoning or conduct; "their principles of composition characterized all their works" a rule or standard especially of good behavior; "a man of principle"; "he will not violate his principles" rule of personal conduct.
16. 1. A principle is a general belief that you have about the way you should behave, which influences your behaviour. Buck never allowed himself to be bullied into doing anything that went against his principles It's not just a matter of principle. a man of principle.
17. The principles of a particular theory or philosophy are its basic rules or laws. a violation of the basic principles of Marxism.
18. Scientific principles are general scientific laws which explain how something happens or works. These people lack all understanding of scientific principles.
19. If you agree with something in principle, you agree in general terms to the idea of it, although you do yet know the details or know if it will be possible. I agree with it in principle but I doubt if it will happen in practice.
20. If something is possible in principle, there is no known reason why it should not happen, even though it has not happened before. Even assuming this to be in principle possible, it will not be achieved soon.
21. If you refuse to do something on principle, you refuse to do it because of a particular belief that you have. He would vote against it on principle. Archimedes' principle Bernoulli's principle continuity principle Copernican principle equivalence principle Mach's principle Pascal's principle Pauli exclusion principle verifiability principle uncertainty principle indeterminacy principle Heisenberg uncertainty principle.