Noun

(en noun)

(lb) A two-dimensional geometric figure, a line, consisting of the set of all those points in a plane that are equally distant from another point.

:The set of all points (x'', ''y'') such that (x-1)² + y² = r² is a circle of radius ''r around

A two-dimensional geometric figure, a disk, consisting of the set of all those points of a plane at a distance less than or equal to a fixed distance from another point.

Any thin three-dimensional equivalent of the geometric figures.

:

A curve that more or less forms part or all of a circle.

:

Orbit.

A specific group of persons.

:

* (1800-1859)

*:As his name gradually became known, the circle of his acquaintance widened.

*

*:At half-past nine on this Saturday evening, the parlour of the Salutation Inn, High Holborn, contained most of its customary visitors.In former days every tavern of repute kept such a room for its own select circle , a club, or society, of habitués, who met every evening, for a pipe and a cheerful glass.

*

*:“I don't mean all of your friends—only a small proportion—which, however, connects your circle with that deadly, idle, brainless bunch—the insolent chatterers at the opera, the gorged dowagers,, the jewelled animals whose moral code is the code of the barnyard—!"

*1922 , (Margery Williams), (The Velveteen Rabbit)

*:The Rabbit could not claim to be a model of anything, for he didn’t know that real rabbits existed; he thought they were all stuffed with sawdust like himself, and he understood that sawdust was quite out-of-date and should never be mentioned in modern circles .

(lb) A line comprising two semicircles of 30 yards radius centred on the wickets joined by straight lines parallel to the pitch used to enforce field restrictions in a one-day match.

(lb) A ritual circle that is cast three times deosil and closes three times widdershins either in the air with a wand or literally with stones or other items used for worship.

(lb) A traffic circle or roundabout.

*2011 , Charles E. Webb, Downfall and Freedom , p.120:

*:He arrived at the lakefront and drove around the circle where the amusement park and beach used to be when he was a kid

(lb) Compass; circuit; enclosure.

*(William Shakespeare) (c.1564–1616)

*:in the circle of this forest

(lb) An instrument of observation, whose graduated limb consists of an entire circle. When fixed to a wall in an observatory, it is called a mural circle''; when mounted with a telescope on an axis and in Y's, in the plane of the meridian, a ''meridian'' or ''transit circle''; when involving the principle of reflection, like the sextant, a ''reflecting circle''; and when that of repeating an angle several times continuously along the graduated limb, a ''repeating circle .

A series ending where it begins, and repeating itself.

*(John Dryden) (1631-1700)

*:Thus in a circle runs the peasant's pain.

(lb) A form of argument in which two or more unproved statements are used to prove each other; inconclusive reasoning.

*(Joseph Glanvill) (1636-1680)

*:That heavy bodies descend by gravity; and, again, that gravity is a quality whereby a heavy body descends, is an impertinent circle and teaches nothing.

Indirect form of words; circumlocution.

* (1579-1625)

*:Has he given the lie, / In circle , or oblique, or semicircle.

A territorial division or district.

:

Noun

(en noun)

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.

* {{quote-magazine, date=2012-01

, author=Michael Riordan , title=Tackling Infinity , volume=100, issue=1, page=86 , magazine= citation , passage=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.}}

(mathematics) The set of all possible mathematical entities (points) where a given function is defined.

(mathematics) A 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 [[subdomain, subdomains

* 2000 , BIND 9 Administrator Reference Manual (9.3.2) , Internet Software Consortium [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, Internet) A collection of DNS]] or DNS-like domain names consisting of a delegated domain name and all its [[subdomain, 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

* {{quote-web

, year = unknown , author = IBM , title = IBM Terminology - terms D , site = 'IBM Software , Globalization , Terminology' , url = http://www-01.ibm.com/software/globalization/terminology/d.html , accessdate = 2013-12-29 }}

A characteristic of a field. A data domain specifies a data type and applies the minimum and maximum values allowed and other constraints.

(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