According to norms or rules or to a regular pattern. / (mathematics) Adhering to or being what is considered natural or regular in a particular field or context:

(geometry) A line or vector that is perpendicular to another line, surface, or plane. / (medicine, countable) A person who is healthy, normal, as opposed to one who is morbid.

Pertaining to the period of Norman rule of England, 1066–1154. / Pertaining to Normans in England after the Norman Conquest. / Relating to their language.

A Norman who settled in England after the Norman Conquest, or a descendant of one.

The Old French dialect spoken in England by the ruling classes after the Norman Conquest, or the form of this dialect used in English law until the 17th century.

A person whose ancestors are from Normandy or who resides in Normandy.

The langue d'oïl variant, closely related to the French of Île-de-France (i.e. Paris), spoken in Normandy and the Channel Islands, and was for several centuries the ruling language of England (see Anglo-Norman).

Of or pertaining to Normandy or its inhabitants (present or past). / Relating to the Norman language or the dialect of French spoken in Normandy.

(obsolete) The Backus-Naur form.

(mathematics) A measure of length given by "the square root of the squares." Denoted by ||·||₂, the two-norm of a vector ⃑v= is ||⃑v||₂=√. The two norm of an m⨯m matrix A is defined by max _(⃑v≠⃑0)|/} where ⃑v is an m-dimensional vector that is not the zero vector.