domain
nounUK /ˌdəʊˈmeɪ̯n/ · CA, US /ˌdoʊ̯ˈmeɪ̯n/
Etymology
Etymology tree Proto-Indo-European *dem- Proto-Indo-European *-s Proto-Indo-European *dṓmder. Proto-Italic *domanos Latin dominus Proto-Indo-European *-(i)yós Proto-Italic *-ijos Proto-Italic *-ios Old Latin -ios Latin -ius Latin -ium Latin dominiumder. Old French demainebor. Middle English demayne English domain From Middle English demayne, demain (“rule”), from Old French demeine, demaine, demeigne, domaine (“power”), (French domaine), from Latin dominium (“property, right of ownership”), from dominus (“master, proprietor, owner”). Doublet of demesne and dominium, and closely related to dominion and domino. See also dame, and compare demain, danger, dungeon.
17 senses
- 1A geographic area owned or controlled by a single person…
- 2A field or sphere of activity, influence or expertise.
- 3A group of related items, topics, or subjects.
- 4The set of input (argument) values for which a function…
- 5The set A; The subset of A consisting of elements a of A…
- 6A ring with no zero divisors; that is, in which no…
- 7An open and connected set in some topology. For example…
- 8Any DNS domain name, particularly one which has been…
- 9A collection of DNS or DNS-like domain names consisting…
- 10A collection of information having to do with a domain…
- 11The collection of computers identified by a domain's…
- 12A small region of a magnetic material with a consistent…
- 13Such a region used as a data storage element in a bubble memory.
- 14A form of technical metadata that represent the type of…
- 15The highest rank in the classification of organisms…
- 16A folded section of a protein molecule that has a…
- 17An area of more or less uniform mineralization.
A geographic area owned or controlled by a single person or organization.
- The king ruled his domain harshly.
- Bears and other ferocious beasts resented man's intrusion into their domain; so, too, did the Blackfoot Indians and other tribes, whose savage hostility was a constant menace to the lives of the toiling engineers.1954 February, Trevor Holloway, “Canada's Transcontinental Routes”, in Railway Magazine, page 128:
2 more examples
- Farmers account for just 1.5% of the British population, but the size of their domain – 71% of the country’s surface area is classified as farmland – has given them power over the public imagination.2020 February 25, Christopher de Bellaigue, “The end of farming?”, in The Guardian:
- A blinded hermit in oblivion, disgraced Like Odysseus lost in Poseidon's endless domain In a realm devoid ov solace, I roam2022, “Ov My Herculean Exile”, in Nergal, Tomasz Wróblewski (lyrics), Behemoth (music), Opvs Contra Natvram, performed by Behemoth:
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.
1 more example
- When examining studies that assess independent living and social skills—key areas of focus in adulthood for individuals with ASD—it is observed that most research evaluates only one of these domains, either activities of daily living or social functioning.2025 August 13, Müjdat Erarkadaş, Kübra Özmeral Erarkadaş, Şahika Gülen Şişmanlar, “Autism Spectrum Disorder Beyond Childhood: A Comprehensive Assessment of Activities of Daily Living and Social Functioning in Turkish Adults.”, in Journal of Autism and Developmental Disorders, →DOI:
A group of related items, topics, or subjects.
- 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.2012 January 23, Michael Riordan, “Tackling Infinity”, in American Scientist, volume 100, number 1, archived from the original on 30 Apr 2013, page 86:
Mathematics, Sciences, Set theory The set of input (argument) values for which a function is defined.
Mathematics, Sciences, Set theory Broadly The set A; The subset of A consisting of elements a of A such that there exists an element b in B with (a,b) in R.
Of a binary relation R between A and B
Mathematics, Sciences A ring with no zero divisors; that is, in which no product of nonzero elements is zero.
Mathematical analysis, Mathematics, Sciences, Topology An open and connected set in some topology. For example, the interval (0,1) as a subset of the real numbers.
Computing, Engineering, Mathematics, Natural sciences, Physical sciences, Sciences 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 https://web.archive.org/web/20060619063455/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, Engineering, Mathematics, Natural sciences, Physical sciences, Sciences Internet A collection of DNS or DNS-like domain names consisting of a delegated domain name and all its subdomains.
Computing, Engineering, Mathematics, Natural sciences, Physical sciences, Sciences 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, Engineering, Mathematics, Natural sciences, Physical sciences, Sciences The collection of computers identified by a domain's domain names.
Natural sciences, Physical sciences, Physics A small region of a magnetic material with a consistent magnetization direction.
Computing, Engineering, Mathematics, Natural sciences, Physical sciences, Sciences Such a region used as a data storage element in a bubble memory.
A form of technical metadata that represent the type of a data item, its characteristics, name, and usage.
Data processing
- A characteristic of a field. A data domain specifies a data type and applies the minimum and maximum values allowed and other constraints.a. 2013, IBM, “IBM Terminology - terms D”, in 'IBM Software|Globalization|Terminology', retrieved 29 Dec 2013:
Biochemistry, Biology, Chemistry, Microbiology, Natural sciences, Physical sciences A folded section of a protein molecule that has a discrete function; the equivalent section of a chromosome.
- Synonyms
- demesne, domain of definition, domain name, hostname, dominium
- Derived terms
86 terms
antidomain, Bézout domain, bidomain, biodomain, chromodomain, cross-domain, cytodomain, data domain, Dedekind domain, didomain, domainal, domained, domainer, domain hack, domaining, domain-joined, domain kiting, domainless, domain logic, domain name, domain name server, domain name service, domain of convergence, domain of discourse, domainogram, domainome, domain-specific, domain-specific language, domain tasting, domain theory, domain wall, domainwide, ecodomain, ectodomain, eminent domain, endodomain, Euclidean domain, exodomain, ferroelectric domain, flavodomain, flexodomain, frequency domain, generic top-level domain, glycodomain, heterodomain, homeodomain, interdomain, intradomain, juxtadomain, macrodomain, megadomain, microdomain, mid-domain effect, minidomain, monodomain, multidomain, naked domain, nanodomain, Noetherian domain, nondomain, oncodomain, ordered integral domain, phosphodomain, polydomain, power domain, principal ideal domain, prodomain, protein domain, pseudodomain, public domain, second-level domain, superdomain, supradomain, synchronization domain, tetradomain, time domain, time-domain analysis, time-domain averaging, time-domain electromagnetic method, time domain electromagnetics, time-domain reflectometer, time-domain reflectometry, transdomain, unique factorization domain, value domain, vanity domain