a standard, model, or pattern.
general level or average: Two cars per family is the norm in most suburban communities.
a designated standard of average performance of people of a given age, background, etc.
a standard based on the past average performance of a given individual.
a real-valued, nonnegative function whose domain is a vector space, with properties such that the function of a vector is zero only when the vector is zero, the function of a scalar times a vector is equal to the absolute value of the scalar times the function of the vector, and the function of the sum of two vectors is less than or equal to the sum of the functional values of each vector. The norm of a real number is its absolute value.
the greatest difference between two successive points of a given partition.

1815–25; < Latin norma carpenter's square, rule, pattern

normless, adjective Unabridged

Norm. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
norm (nɔːm)
1.  an average level of achievement or performance, as of a group or person
2.  a standard of achievement or behaviour that is required, desired, or designated as normal
3.  sociol an established standard of behaviour shared by members of a social group to which each member is expected to conform
4.  maths
 a.  the length of a vector expressed as the square root of the sum of the square of its components
 b.  another name for mode
5.  geology the theoretical standard mineral composition of an igneous rock
[C19: from Latin norma carpenter's rule, square]

Norm (nɔːm)
a stereotype of the unathletic Australian male
[from a cartoon figure in the government-sponsored Life, Be In It campaign]

abbreviation for

abbreviation for

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Word Origin & History

"standard, pattern, model," 1821, from Fr. norme, from O.Fr., from L. norma "carpenter's square, rule, pattern," of unknown origin. Klein suggests a borrowing (via Etruscan) of Gk. gnomon "carpenter's square." The L. form of the word, norma, was used in Eng. in the sense of "carpenter's square" from
Online Etymology Dictionary, © 2010 Douglas Harper
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Computing Dictionary

norm definition

A real-valued function modelling the length of a vector. The norm must be homogeneous and symmetric and fulfil the following condition: the shortest way to reach a point is to go straight toward it. Every convex symmetric closed surface surrounding point 0 introduces a norm by means of Minkowski functional; all vectors that end on the surface have the same norm then.
The most popular norm is the Euclidean norm.
The Free On-line Dictionary of Computing, © Denis Howe 2010
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American Heritage
Abbreviations & Acronyms
  1. standard

  2. model

  3. pattern

The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Encyclopedia Britannica


rule or standard of behaviour shared by members of a social group. Norms may be internalized-i.e., incorporated within the individual so that there is conformity without external rewards or punishments, or they may be enforced by positive or negative sanctions from without. The social unit sharing particular norms may be small (e.g., a clique of friends) or may include all adult members of a society. Norms are more specific than values or ideals: honesty is a general value, but the rules defining what is honest behaviour in a particular situation are norms

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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Example sentences
Instead, it may have entered a phase in which high unemployment is the norm.
People are crowded together, with open sewers the norm.
Sustainability dashboards providing real-time information will become the norm.
The high temperatures in summer and the lows in winter were not that much out
  of the norm.
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