Noun

(en noun)

A geographic area owned or controlled by a single person or organization.

The king ruled his domain harshly.

A field or sphere of activity, influence or expertise.

Dealing with complaints isn't really my domain : get in touch with customer services.

His domain is English history.

A group of related items, topics, or subjects.

* {{quote-magazine, date=2012-01

, author=Michael Riordan , title=Tackling Infinity , volume=100, issue=1, page=86 , magazine= citation , passage=Some of the most beautiful and thus appealing physical theories, including quantum electrodynamics and quantum gravity, have been dogged for decades by infinities that erupt when theorists try to prod their calculations into new domains . Getting rid of these nagging infinities has probably occupied far more effort than was spent in originating the theories.}}

(mathematics) The set of all possible mathematical entities (points) where a given function is defined.

(mathematics) A of nonzero elements is zero.

(mathematics, topology, analysis) An open and connected set in some topology. For example, the interval (0,1) as a subset of the real numbers.

(computing, Internet) Any DNS]] domain name, particularly one which has been delegated and has become representative of the delegated domain name and its [[subdomain, subdomains

* 2000 , BIND 9 Administrator Reference Manual (9.3.2) , Internet Software Consortium [http://www.bind9.net/manual/bind/9.3.2/Bv9ARM.ch01.html]

Every name in the DNS tree is a domain , even if it is terminal, that is, has no subdomains.

(computing, Internet) A collection of DNS]] or DNS-like domain names consisting of a delegated domain name and all its [[subdomain, subdomains

(computing) A collection of information having to do with a domain', the computers named in the '''domain''', and the network on which the computers named in the ' domain reside

(computing) The collection of computers identified by a domain' s domain names

(physics) A small region of a magnetic material with a consistent magnetization direction; such a region used as a data storage element in a bubble memory

(data processing) a form of technical metadata that represent the type of a data item, its characteristics, name, and usage

* {{quote-web

, year = unknown , author = IBM , title = IBM Terminology - terms D , site = 'IBM Software , Globalization , Terminology' , url = http://www-01.ibm.com/software/globalization/terminology/d.html , accessdate = 2013-12-29 }}

A characteristic of a field. A data domain specifies a data type and applies the minimum and maximum values allowed and other constraints.

(biology, taxonomy) The highest rank in the classification of organisms, above kingdom; in the three-domain system, one of the taxa Bacteria'', ''Archaea'', or ''Eukaryota .

(biochemistry) A folded section of a protein molecule that has a discrete function

Noun

(en noun)

(biology, systematics) A group of animals or other organisms derived from a common ancestor species.

* 2001 , Ross H. Nehm, 6: Linking Evolutionary Pattern and Development Process in Marginellid Gastropods'', Alan H. Cheetham, Jeremy B. C. Jackson, Scott Lidgard, Frank K. McKinney (editors), ''Evolutionary Patterns: Growth, Form, and Tempo in the Fossil Record , page 166,

All three clades containing Prunum'' and “''Volvarina ” species contain morphological features that do not collectively appear in any other living or fossil marginellid species (see above).

* 2002 , , page 1092,

No one has ever tabulated the number or percentage of non-trending clades' within larger monophyletic groups. The concept of a non-trending '''clade''' — the higher level analog of a species in stasis — has never been explicitly formulated at all. If only one percent of ' clades exhibited sustained trends, we would still focus our attention upon this tiny minority in telling our favored version of the story of life's history.

* 2004 September 11, Bob Holmes, Linnean naming system faces challengers'', ''New Scientist , page 13,

A clade is made up of an ancestral species and all its descendants; think of it as that part of an evolutionary tree that would fall off with a single saw cut.

(genetics) A higher level grouping of a genetic haplogroup.