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  • some kind of territory, such as (for example) a demesne or a realm
  • synonymous with a metaphorical field, e.g. "the domain of computer science"
  • a field of study
  • public domain, a body of works and knowledge without proprietary interest
  • atomic domain - a domain whose elements class as indivisible units
  • eminent domain, the power of government to confiscate private property for public use
  • The Domain, a shopping mall in Austin, Texas, USA
  • in several Commonwealth countries, the name for parkland made available for public use by the monarch or their representative, the Governor. Examples include:
    • The Domain, Sydney: a large open space near the central business district of Sydney, Australia
    • Kings Domain, Melbourne: in Victoria, Australia
    • The Domain Tunnel, Melbourne: a tunnel that runs underneath the Yarra River in Victoria, Australia
    • Queens Domain, Hobart: in Tasmania, Australia
    • Auckland Domain: a large inner-city park in Auckland, New Zealand containing an ancient volcano and the War Memorial Museum
    • Throughout New Zealand a Town Domain is typically a public sport area administered by a Domain Board.


  • domain (biology), a subdivision even larger than a kingdom
  • protein domain, an autonomously folding functional module of a protein
  • domain (physics), a region of a solid inside which a property is uniform (for example magnetic domain in ferromagnetism)


In mathematics domain can refer to:

  • the domain of a function
  • one of the domains of a relation
  • an ordered structure studied in domain theory
  • a ring-theoretic domain, an integral domain or a Euclidean domain — types of ring
  • an open and connected set
  • domain of discourse in symbolic logic

Information technology

In information technology, the term domain can refer to:

  • a machine or virtual host on the Internet; do not confuse the name of a domain - its "domain name" - with the domain itself
  • a Windows Server domain, a centrally-managed group of computers using the Windows operating-system
  • a broadcast domain in computer networking
  • an application domain - the kinds of purposes for which users use a software system
  • a software engineering domain - a field of study that defines a set of common requirements, terminology, and functionality for any software program constructed to solve a problem in that field. See also domain-specific programming languages.
  • a CLR application domain, a mechanism for separating executed applications (similar to a process)
  • In Database Theory, a data domain is a set of all permitted atomic values.
  • a workstation operating system called Domain/OS.
  • a group of computers on a network that share a common directory or storage location.


  • Domain is the debut album by the British heavy metal band Above All.
  • Domain is a German heavy metal band


The original etymological implication of the word domain carries the idea of "something ruled". Compare and contrast dominion, domination, dominant and demesne.

Smallwikipedialogo.png This page uses content from Wikipedia. The original article was at Domain. The list of authors can be seen in the page history. As with Paleontology Wiki, the text of Wikipedia is available under the GNU Free Documentation License.