domain

do·main

The definition of a domain is a group of workgroups within the same company or organization that governs the ability of all the computers to communicate with other groups of computers both within and outside of the organization.

An example of a domain is the overall decision point that defines which resources on the network are accessible to a given user and keeps track of login and password information for all users within a set of workgroups in an organization.
An example of a domain is a group of Domain Name Servers, Mail Servers, Print Servers, Internet World Wide Web Servers and FTP Servers.

noun

The definition of a domain is the area a given person or people rules or an area of knowledge.
1. An example of domain is the kingdom ruled by a king.
2. An example of domain is a person's area of expertise, such as mathematics.

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domain

territory under one government or ruler; dominion
land belonging to one person; estate
supreme ownership
field or sphere of activity or influence: the domain of science
Biol. in some taxonomic systems, the highest classification category, ranking above a kingdom
Comput. domain name
Math.
1. the set of those values of an independent variable which exist for a given function
2. the set of all integers, or a set of elements which can be combined in the same way as the integers
Physics a region in a ferromagnetic material within which the atoms are magnetically aligned: alignment of these regions results in the material being magnetized

Origin of domain

Middle English domein from Middle French domaine from Classical Latin dominium, right of ownership, dominion from dominus, a lord: see dominate

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domain

noun

A territory over which rule or control is exercised.
A sphere of activity, influence, or knowledge: the domain of history. See Synonyms at field.
Mathematics
a. The set of all possible values of an independent variable of a function.
b. An open connected set that contains at least one point.
Computers A group of networked computers that share a common communications address.
Physics Any of numerous contiguous regions in a ferromagnetic material in which the direction of spontaneous magnetization is uniform and different from that in neighboring regions.
Biology Any of three primary divisions of organisms, consisting of the eukaryotes, bacteria, and archaea, that rank above a kingdom in taxonomic systems based on similarities of DNA sequences.
Law The land of one with paramount title and absolute ownership.

Origin of domain

French domaine blend of Old French demaine ( from Late Latin dominicum )Latin dominium property both from dominus lord ; see dem- in Indo-European roots.

THE AMERICAN HERITAGE® DICTIONARY OF THE ENGLISH LANGUAGE, FIFTH EDITION by the Editors of the American Heritage Dictionaries. Copyright © 2016, 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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Mathematics The set of all values that an independent variable of a function can have. In the function y = 2x, the set of values that x (the independent variable) can have is the domain.
Compare range
Computer Science A group of networked computers that share a common communications address.
Biology A division of organisms that ranks above a kingdom in systems of classification that are based on shared similarities in DNA sequences rather than shared structural similarities. In these systems, there are three domains: the archaea, the bacteria, and the eukaryotes.
Physics A region in a ferromagnetic substance in which the substance is magnetized with the same polarization throughout.

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Noun

(plural domains)

A geographic area owned or controlled by a single person or organization.
The king ruled his domain harshly.
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.
A group of related items, topics, or subjects.
(mathematics) The set of all possible mathematical entities (points) where a given function is defined.
(mathematics) A ring with no zero divisors; that is, in which no product of nonzero elements is zero.
(mathematics, topology, analysis) An open and connected set in some topology. For example, the interval (0,1) as a subset of the real numbers.
(computing, Internet) Any DNS domain name, particularly one which has been delegated and has become representative of the delegated domain name and its subdomains
(computing, Internet) A collection of DNS or DNS-like domain names consisting of a delegated domain name and all its subdomains
(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
(computing) The collection of computers identified by a domain's domain names
(physics) A small region of a magnetic material with a consistent magnetization direction; such a region used as a data storage element in a bubble memory
(data processing) a form of technical metadata that represent the type of a data item, its characteristics, name, and usage
(biology, taxonomy) The highest rank in the classification of organisms, above kingdom; in the three-domain system, one of the taxa Bacteria, Archaea, or Eukaryota.
(biochemistry) A folded section of a protein molecule that has a discrete function

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.

Related terms

Origin

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

English Wiktionary. Available under CC-BY-SA license.

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domain - Computer Definition

Sphere of influence.
In the Internet Domain Name System (DNS), the rightmost portion of the address, the domain identifies the type of entity owning or sponsoring the address. The several types of Top Level Domains (TLDs) include generic Top Level Domains (gTLDs) and country codes. If a country code is used in the address, the gTLD becomes a secondary domain. See also country code, DNS, gTLD, Internet, secondary domain, and TLD.

Webster's New World Telecom Dictionary Copyright © 2010 by Wiley Publishing, Inc., Indianapolis, Indiana.
Used by arrangement with John Wiley & Sons, Inc.

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(1) In a LAN, a subnetwork made up of a group of clients and servers under the control of one security database. Dividing LANs into domains improves performance and security.

(2) In a communications network, all resources under the control of a single computer system.

(3) On the Internet, a registration category. See domain name and Internet domain name.

(4) In database management, all possible values contained in a particular field for every record in the file.

(5) A group of end points (phones or gateways) in a SIP telephony environment. See SIP.

(6) In magnetic storage devices, a group of molecules that makes up one bit.

(7) In a hierarchy, a named group that has control over the groups under it, which may be domains themselves.

Computer Desktop Encyclopedia THIS DEFINITION IS FOR PERSONAL USE ONLY All other reproduction is strictly prohibited without permission from the publisher. © 1981-2017 The Computer Language Company Inc. All rights reserved.

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domain - Legal Definition

Real estate; the ownership of such real estate. In Internet parlance, an Internet address (such as www.aol.com) to be registered with the appropriate authorities.

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domain - Medical Definition

Any of three primary divisions of organisms, consisting of the eukaryotes, bacteria, and archaea, that rank above a kingdom in taxonomic systems based on similarities of DNA sequences.

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domain

domain

domain

domain - Computer Definition

domain - Legal Definition

domain - Medical Definition

Sentence Examples

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domain

domain

domain

domain - Computer Definition

domain - Legal Definition

domain - Medical Definition

Sentence Examples

Also Mentioned In

WORDS NEAR domain IN THE DICTIONARY

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