Domain may refer to:


  • Territory (administrative division), a non-sovereign geographic area which has come under the authority of another government
  • Public domain, a body of works and knowledge without proprietary interest
  • Eminent domain, the power of government to confiscate private property for public use
  • Domain, a game published by Parker Brothers in 1983


  • Domain (biology), a subdivision even larger than a kingdom
  • Domain knowledge, a specific expert knowledge valid for a pre-selected area of activity, such as surgery
  • Domain specificity, a theoretical position arguing that many aspects of cognition are supported by specialized learning devices
  • Domain wall, a term used in physics which can have one of two distinct but similar meanings in either magnetism or string theory
  • Magnetic domain, a region within a magnetic material which has uniform magnetization
  • Protein domain, a part of a protein that can exist independently of the rest of the protein chain

Information technology

  • Administrative domain, a service provider holding a security repository permitting to easily authenticate and authorize clients with credentials
  • Application domain, the kinds of purposes for which users use a software system
  • Broadcast domain, in computer networking, a group of special purpose addresses to receive network announcements
  • Clock domain crossing, when a signal crosses from one clock domain into another
  • CLR application domain, a mechanism for separating executed applications (similar to a process)
  • Collision domain, a physical network segment that is a shared medium where data packets can "collide" with one another
  • Data domain, in database theory, a set of all permitted values
  • 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 that field
  • Domain analysis, the process of analyzing related software systems in a domain to find their common and variable parts
  • Domain-driven design, an approach to the design of software
  • Domain engineering, the reusing of domain knowledge in the production of new software
  • Domain model, a conceptual model of a system that describes the various entities involved and their relationships
  • Domain name, a common network name under which a collection of network devices are organized (e.g.,
    • Domain hack, a domain name that combines domain levels to spell out the full "name" or title of the domain
    • Domain information groper a tool that queries DNS servers for any desired DNS records
    • Domain name registrar, an organization that manages the reservation of Internet domain names in one or more domains
    • Domain name registry, a database of all domain names registered in a top-level domain
    • Domain Name System (DNS), an hierarchical naming system for computers or any resource connected to the Internet
    • Domain privacy, a service that replaces the user's information in the WHOIS directory with the information of a forwarding service
    • Second-level domain, a domain that is directly below a top-level domain
    • Top-level domain one of the domains at the highest level in the hierarchical Domain Name System of the Internet


  • Domain (ring theory), a nontrivial ring without left or right zero divisors
    • Integral domain, a non-trivial commutative ring without zero divisors
    • 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
    • Atomic domain, an integral domain in which every non-zero non-unit is a finite product of irreducible elements
    • 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
    • Bézout domain, an integral domain in which the sum of two principal ideals is again a principal ideal
  • Domain (mathematical analysis), an open connected set
  • Domain coloring, a technique for visualizing functions of a complex variable
  • Domain decomposition methods, solve a boundary value problem by splitting it into smaller problems on subdomains
  • Domain of a function, also called the source, the set of input values for which the function is defined
  • Domain of discourse, an analytic tool that indicates the relevant set of entities that are being dealt with by quantifiers
  • Domain relational calculus, a calculus that was introduced as a declarative database query language for the relational data model
  • Domain theory, a branch of mathematics that studies special kinds of partially ordered sets (posets) commonly called domains
  • Frequency domain, a term used to describe the analysis of mathematical functions with respect to frequency, rather than time
  • Fundamental domain, a symmetry group of an object is a part or pattern, as small or irredundant as possible, which determines the whole object based on the symmetry
  • Invariance of domain, a theorem in topology about homeomorphic subsets of Euclidean space
  • Time domain, a term used to describe the analysis of mathematical functions with respect to time


  • The Domain (Austin), a shopping mall in Austin, Texas, USA
  • "The Domain", the official term for the campus of Sewanee: The University of the South
  • In several Commonwealth of Nations countries, the name for parkland made available for public use by the monarch or their representative, the Governor. Examples include:


  • Domain (album), the debut album by the British metal band Above All
  • Domain (band), a German heavy metal band
  • Private Domain, an American pop/rock band formed in 1985

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Look at other dictionaries:

  • domain — do‧main [dəˈmeɪn, dəʊ ǁ də , doʊ ] noun [countable] 1. an area of activity, interest, or knowledge: • the scientific domain. 2. somebody s/​something s domain COMMERCE an activity controlled by one person, organization, industry etc: • Marketing… …   Financial and business terms

  • Domain — Do*main , n. [F. domaine, OF. demaine, L. dominium, property, right of ownership, fr. dominus master, owner. See {Dame}, and cf {Demesne}, {Dungeon}.] 1. Dominion; empire; authority. [1913 Webster] 2. The territory over which dominion or… …   The Collaborative International Dictionary of English

  • domain — I (land owned) noun alodium, demesne, estate, freehold, hereditament, holding, land, manor, possessio, property, real estate, real property, realty, seigniory, tenure associated concepts: eminent domain II (sphere of influence) noun bailiwick,… …   Law dictionary

  • domain — [dō mān′, dəmān′] n. [ME domein < MFr domaine < L dominium, right of ownership, dominion < dominus, a lord: see DOMINATE] 1. territory under one government or ruler; dominion 2. land belonging to one person; estate 3. supreme ownership:… …   English World dictionary

  • domain — (n.) early 15c., in Scottish, from M.Fr. domaine domain, estate, from O.Fr. demaine lord s estate, from L. dominium property, dominion, from dominus lord, master, owner, from domus house (see DOMESTIC (Cf. domestic)). Form influenced in Old… …   Etymology dictionary

  • domain — domain. См. домен. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

  • domain — sphere, province, *field, territory, bailiwick Analogous words: *area, region, zone: district, *locality: jurisdiction, dominion (see POWER) …   New Dictionary of Synonyms

  • domain — [n] area of expertise, rule authority, bailiwick, concern, demesne, department, discipline, district, dominion, empire, estate, field, home park*, jurisdiction, land, neck of the woods*, occupation, orbit*, power, province, quarter, realm, region …   New thesaurus

  • domain — ► NOUN 1) an area controlled by a ruler or government. 2) a sphere of activity or knowledge. 3) Computing a distinct subset of the Internet with addresses sharing a common suffix. ORIGIN French domaine, from Old French demeine belonging to a lord …   English terms dictionary

  • Domain — Schematische Darstellung der DNS Hierarchie Eine Domain (auch Domäne) ist ein zusammenhängender Teilbereich des hierarchischen Domain Name System (DNS). Im Domain Vergabeverfahren ist es ein im Internet weltweit einmaliger und eindeutiger und… …   Deutsch Wikipedia

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