domain
nounDefinition 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
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.
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