Domain, Disambiguation page providing links to topics that could be referred to by the same search term.

Domain may refer to:


  • 1 Mathematics
  • 2 Science
  • 3 Information technology
  • 4 Places
    • 4.1 Australian Public Domains
    • 4.2 New Zealand Public Domains
  • 5 Film
  • 6 Other uses


  • Domain of a function, the set of input values for which the (total) function is defined
    • Domain of definition of a partial function
    • Natural domain of a partial function
    • Domain of holomorphy of a function
  • Domain (mathematical analysis), an open connected set
  • Domain of discourse, the set of entities over which logic variables may range
  • Domain of an algebraic structure, the set on which the algebraic structure is defined
  • Domain theory, the study of certain subsets of continuous lattices that provided the first denotational semantics of the lambda calculus
  • Domain (ring theory), a nontrivial ring without left or right zero divisors
    • Integral domain, a non-trivial commutative ring without zero divisors
      • Atomic domain, an integral domain in which every non-zero non-unit is a finite product of irreducible elements
      • Bézout domain, an integral domain in which the sum of two principal ideals is again a principal ideal
      • Euclidean domain, an integral domain which allows a suitable generalization of the Euclidean algorithm
      • Dedekind domain, an integral domain in which every nonzero proper ideal factors into a product of prime ideals
      • GCD domain, an integral domain in which every two non-zero elements have a greatest common divisor
      • Principal ideal domain, an integral domain in which every ideal is principal
      • Unique factorization domain, an integral domain in which every non-zero element can be written as a product of irreducible elements in essentially a unique way
  • Frequency domain, the analysis of mathematical functions with respect to frequency, rather than time
  • Fundamental domain, subset of a space that contains exactly one point from each orbit of the action of a symmetry group
  • Time domain, the analysis of mathematical functions with respect to time


  • Domain (biology), a taxonomic subdivision larger than a kingdom
  • High-field domain (physics) in semiconductors, also called Böer domain
  • Protein domain (biology), a part of a protein that can exist independently of the rest of the protein chain
  • Magnetic domain (physics), a region within a magnetic material which has uniform magnetization
  • Social domain, a concept in sociology
  • Domain of discourse, the collection of entities of interest in logical analysis

Information technology

  • Administrative domain
  • Broadcast domain, in computer networking, a group of special-purpose addresses to receive network announcements
  • Collision domain
  • Domain (software engineering), a field of study that defines a set of common requirements, terminology, and functionality for any software program constructed to solve a problem in a given field
    • Application domain, a mechanism used within a Common Language Infrastructure to isolate executed software applications from one another
    • Programming domain, a set of programming languages or programming environments that were engineered specifically for a particular domain (software engineering)
  • Network domain, a named grouping of hosts and servers with managed login, access to resources, and permissions.
    • Domain name, a label that identifies a realm of administrative autonomy, authority, or control within the Internet


  • Domain, Manitoba, a hamlet in Manitoba, Canada
  • The Domain (Austin), a shopping mall in Austin, Texas, USA
  • Domain (Hong Kong), a shopping mall in Yau Tong, Kowloon,... more
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