domain

noun
do·​main | \ dō-ˈmān How to pronounce domain (audio) , də- \

Definition of domain

1 law
a : complete and absolute (see absolute sense 3) ownership of land our highways and roads have been in the domain of state and local governments— T. H. White b. 1915 — compare eminent domain
b : land so owned
2 : a territory over which dominion (see dominion sense 2) is exercised The forest is part of the king's domain.
3 : a region distinctively marked by some physical feature a domain of rushing streams, tall trees, and lakes
4 : a sphere (see sphere sense 4b) of knowledge, influence, or activity the domain of biblical scholarship outside the domain of city police
5 mathematics : the set of elements (see element sense 2b(3)) to which a mathematical or logical variable is limited specifically : the set on which a function (see function entry 1 sense 5a) is defined
6 physics : any of the small randomly oriented regions of uniform magnetization in a ferromagnetic substance
7 mathematics : integral domain
8 biology : the highest taxonomic category in biological classification ranking above the kingdom (see kingdom sense 4b)
9 biochemistry : any of the three-dimensional subunits of a protein that are formed by the folding of its linear peptide chain and that together make up its tertiary (see tertiary entry 1 sense 3c) structure
10 computers : a subdivision of the Internet consisting of computers or sites usually with a common purpose (such as providing commercial information) and denoted in Internet addresses by a unique abbreviation (such as com for commercial sites or gov for government sites) The domain ca is used for sites located in Canada. also : domain name Our domain is Merriam-Webster.com.

Examples of domain in a Sentence

The forest is part of the king's domain. My sister is the math expert in the family, but literature is my domain. Childcare is no longer solely a female domain.
Recent Examples on the Web The room’s impossible grandeur suited its purpose as a private domain with serious public overtones. Robert Haskell, WSJ, 9 Sep. 2022 An app can also cryptographically declare the validity of a URL domain. Dan Goodin, Ars Technica, 1 Sep. 2022 Owning land in a decentralized metaverse is comparable to buying a domain. Tommaso Di Bartolo, Forbes, 12 Aug. 2022 Historians and artists say the movie has opened up a new front in the battle against misinformation in the Philippines, taking something that was once mostly online and bringing it into a new domain. Camille Elemia, BostonGlobe.com, 10 Aug. 2022 Lapvona is a medieval domain with Eastern European overtones — a Magda and a Grigor and a Dibra are wandering around. Los Angeles Times, 17 June 2022 But for the first time in her 35 years in the business, Walden is the solo leader of a considerable domain, as Disney leads the charge in reinventing television for the streaming age. Michael Schneider, Variety, 15 June 2022 Ultimately, taking an individaul’s genetic material and information without their consent is an intrusion into a legal domain that is still considered deeply personal. Liza Vertinsky, The Conversation, 3 June 2022 Last July, Kiwi Farms was booted from its domain registrar, DreamHost, following the suicide of a software developer called Near, who was a long time target of the site’s user base. Joseph Menn And Taylor Lorenz, Anchorage Daily News, 5 Sep. 2022 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'domain.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of domain

15th century, in the meaning defined at sense 1a

History and Etymology for domain

alteration of Middle English demayne, from Anglo-French demeine, from Latin dominium, from dominus — see dominate

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Time Traveler for domain

Time Traveler

The first known use of domain was in the 15th century

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Dictionary Entries Near domain

Domagk

domain

domainal

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Last Updated

20 Sep 2022

Cite this Entry

“Domain.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/domain. Accessed 1 Oct. 2022.

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More Definitions for domain

domain

noun
do·​main | \ dō-ˈmān How to pronounce domain (audio) \

Kids Definition of domain

1 : land under the control of a ruler or a government
2 : a field of knowledge or activity the domain of science

domain

noun
do·​main | \ dō-ˈmān, də- How to pronounce domain (audio) \

Medical Definition of domain

1 : any of the three-dimensional subunits of a protein that together make up its tertiary structure, that are formed by folding its linear peptide chain, and that are variously considered to be the basic units of protein structure, function, and evolution immunoglobulin light chains have two domains and heavy chains have four or five domains, depending on classJournal of the American Medical Association
2 : the highest taxonomic category in biological classification ranking above the kingdom

More from Merriam-Webster on domain

Nglish: Translation of domain for Spanish Speakers

Britannica English: Translation of domain for Arabic Speakers

Britannica.com: Encyclopedia article about domain

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