Norm

Norm or NORM may refer to:

In academia

Norm (artificial intelligence), a set of statements used to regulate artificial intelligence software
Norm (philosophy), a standard in normative ethics that is prescriptive rather than a descriptive or explanatory abstraction
Norm (social), expected patterns of behaviour and belief, often studied in sociology, social psychology, and many other academic fields
Peremptory norm, a fundamental principle of international law which is accepted by the international community of states as a norm from which no derogation is ever permitted
Norm, a statistical concept in psychometrics representing the aggregate responses of a standardized and representative group are established for a test, against which a subject is compared
NORM, an abbreviation for naturally occurring radioactive materials
NORM (non-mobile older rural males), an acronym in dialect studies coined by Chambers and Trudgill (1980) for a group to which speakers frequently referred

Norm (mathematics), a map that assigns lengths to vectors, with some variations:
- Normed vector space, a vector space on which a norm is defined
- Matrix norm, a natural extension of the notion of a vector norm to matrices
- Norm (abelian group), generalization to abelian groups
- Hölder mean, also known as the Power Mean or Generalized Mean
Surface normal, a vector which is perpendicular to a surface
Field norm in algebraic number theory and Galois theory
Ideal norm, the ideal theoretic generalization of the field norm
Norm (group), a certain subgroup of a group
Norm (map), a map from a pointset into the ordinals inducing a prewellordering
Norm group, a group in class field theory that is the image of the multiplicative group of a field
Norm function, a term in Euclidean domain sometimes used in place of "Euclidean function"

Norm Peterson, a character in the sitcom Cheers and its spin-off Frasier
Norm, a character from the Life. Be in it. campaign
Norm the giant robot man, a recurring creation of Dr. Doofenshmirtz from Phineas and Ferb

The Norm Show, a television series featuring Norm Macdonald as the titular character
Grandmaster norm, a chess result required to qualify for an official title
Norms Restaurants, a chain of restaurants in Southern California
NORM (NACK-Oriented Reliable Multicast), a transport protocol as defined in RFC 5740
The Norm (comic strip), syndicated by Michael Jantze