Domain Definition

Contents

• 1 English
  • 1.1 Etymology
  • 1.2 Pronunciation
  • 1.3 Noun
    • 1.3.1 Usage notes
    • 1.3.2 Synonyms
    • 1.3.3 Antonyms
    • 1.3.4 Derived terms
    • 1.3.5 Related terms
    • 1.3.6 Translations
    • 1.3.7 External links
  • 1.4 Statistics
  • 1.5 Anagrams

English

Etymology

< Old English demeine, demain (rule), Old French demeine, demaine, demeigne, domaine (power), French domaine < Latin dominium (“property, right of ownership”) < dominus (“master, proprietor, owner”). See dame, and confer demain, danger, dungeon.

Pronunciation

• (RP) IPA: /dəʊˈmeɪn/, SAMPA: /d@U"meIn/
• (GenAm) IPA: /doʊˈmeɪn/, SAMPA: /doU"meIn/

• Audio (US)
  (file)

• Rhymes: -eɪn

Noun

domain (plural domains)

1. A geographic area owned or controlled by a single person or organization.
2. A sphere of influence.
3. A group of related items, topics, or subjects.
4. (mathematics) The set of all possible mathematical entities (points) where a given function is defined.
5. (mathematics, topology, analysis) An open and connected set in some topology. For example, the interval (0,1) as a subset of the real numbers.
6. (computing, Internet) Any DNS domain name, particularly one which has been delegated and has become representative of the delegated domain name and its subdomains
   • 2000, BIND 9 Administrator Reference Manual (9.3.2), Internet Software Consortium [1]

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

7. (computing, Internet) A collection of DNS or DNS-like domain names consisting of a delegated domain name and all its subdomains
8. (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
9. (computing) The collection of computers identified by a domain's domain names
10. (biology, taxonomy) In the three-domain system, the highest rank in the classification of organisms, above kingdom; in other taxonomic systems, a similarly high rank
11. (biology, taxonomy) In the three-domain system, one of three taxa at that rank: Bacteria, Archaea, or Eukaryota.

Usage notes

• (collection of information): Used in a context in which domain name services, or domain name like services, are managed in a fashion that is integrated with the management of other computer and network related information.
• (collection of computers): Used in the same context as the collection of information domain sense.

Synonyms

• (where a function is defined): domain of definition
• (collection of DNS names): domain name, hostname

Antonyms

• (domain of definition of a function): range
• (domain of definition of a function): codomain

Derived terms

• domain hack
• domaining
• domainless
• domain name
• domain of discourse
• source domain
• subdomain
• target domain
• top-level domain

Related terms

• DNS
• dominate
• dominion
• domino

External links

• domain in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913
• domain in The Century Dictionary, The Century Co., New York, 1911

Statistics

• Most common English words before 1923: looks · running · garden · #887: domain · touch · higher · military

Anagrams

• daimon
• domina

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