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principle

 - 6 dictionary results

prin⋅ci⋅ple

  [prin-suh-puhl]
Use principle in a Sentence
–noun
1. an accepted or professed rule of action or conduct: a person of good moral principles.
2. a fundamental, primary, or general law or truth from which others are derived: the principles of modern physics.
3. a fundamental doctrine or tenet; a distinctive ruling opinion: the principles of the Stoics.
4. principles, a personal or specific basis of conduct or management: to adhere to one's principles; a kindergarten run on modern principles.
5. guiding sense of the requirements and obligations of right conduct: a person of principle.
6. an adopted rule or method for application in action: a working principle for general use.
7. a rule or law exemplified in natural phenomena, the construction or operation of a machine, the working of a system, or the like: the principle of capillary attraction.
8. the method of formation, operation, or procedure exhibited in a given case: a community organized on the patriarchal principle.
9. a determining characteristic of something; essential quality.
10. an originating or actuating agency or force: growth is the principle of life.
11. an actuating agency in the mind or character, as an instinct, faculty, or natural tendency: the principles of human behavior.
12. Chemistry. a constituent of a substance, esp. one giving to it some distinctive quality or effect.
13. Obsolete. beginning or commencement.
—Idioms
14. in principle, in essence or substance; fundamentally: to accept a plan in principle.
15. on principle,
a. according to personal rules for right conduct; as a matter of moral principle: He refused on principle to agree to the terms of the treaty.
b. according to a fixed rule, method, or practice: He drank hot milk every night on principle.
Origin:
1350–1400; ME, alter. of MF principe or L prīncipium, on the analogy of manciple. See principium

Synonyms:
1, 2, 3. Principle, canon, rule imply something established as a standard or test, for measuring, regulating, or guiding conduct or practice. A principle is a general and fundamental truth that may be used in deciding conduct or choice: to adhere to principle. Canon, originally referring to an edict of the Church (a meaning that it still retains), is used of any principle, law, or critical standard that is officially approved, particularly in aesthetics and scholarship: canons of literary criticism. A rule, usually something adopted or enacted, is often the specific application of a principle: the golden rule. 2. theorem, axiom, postulate, proposition. 5. integrity, probity, rectitude, honor.

Usage note:
See principal.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source Link To principle
prin·ci·ple   (prĭn'sə-pəl)   
n.  

  1. A basic truth, law, or assumption: the principles of democracy.

    1. A rule or standard, especially of good behavior: a man of principle.

    2. The collectivity of moral or ethical standards or judgments: a decision based on principle rather than expediency.

  3. A fixed or predetermined policy or mode of action.

  4. A basic or essential quality or element determining intrinsic nature or characteristic behavior: the principle of self-preservation.

  5. A rule or law concerning the functioning of natural phenomena or mechanical processes: the principle of jet propulsion.

  6. Chemistry One of the elements that compose a substance, especially one that gives some special quality or effect.

  7. A basic source. See Usage Note at principal.


[Middle English, alteration of Old French principe, from Latin prīncipium, from prīnceps, prīncip-, leader, emperor; see per1 in Indo-European roots.]
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Word Origin & History

principle 
c.1380, "fundamental truth or proposition," from Anglo-Norm. principle, from O.Fr. principe, from L. principium (pl. principia) "a beginning, first part," from princeps (see prince). Meaning "origin, source" is attested from 1413. Sense of "general rule of conduct" is from c.1532. Used absolutely for (good or moral) principle from 1653.
"It is often easier to fight for principles than to live up to them." [Adlai Stevenson, speech, New York City, Aug. 27, 1952]
Hence principled "moral" (1697). Scientific sense of "general law of nature" is recorded from 1802.
Online Etymology Dictionary, © 2001 Douglas Harper
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Medical Dictionary

Main Entry: prin·ci·ple
Pronunciation: 'prin(t)-s&-p&l
Function: noun
1 : a comprehensive and fundamental law, doctrine, orassumption
2 : an ingredient (as a chemical) that exhibits or imparts a characteristic quality principle of a drug>
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

principle prin·ci·ple (prĭn'sə-pəl)
n.

  1. A basic truth, law, or assumption.

  2. A rule or law concerning the functioning of natural phenomena or mechanical processes.

  3. One of the elements composing a chemical compound, especially one that gives some special quality or effect.

  4. The essential ingredient in a drug.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Idioms & Phrases

principle

see in principle; on principle.

The American Heritage® Dictionary of Idioms by Christine Ammer.
Copyright © 1997. Published by Houghton Mifflin.
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