Definitions
1.nounA geographic area owned or controlled by a single person or organization."The king ruled his domain harshly."
2.nounA field or sphere of activity, influence or expertise."Dealing with complaints isn't really my domain: get in touch with customer services."
3.nounA group of related items, topics, or subjects.
4.nounThe set of all possible mathematical entities (points) where a given function is defined.
5.nounThe set of input (argument) values for which a function is defined.
6.nounA ring with no zero divisors; that is, in which no product of nonzero elements is zero.
7.nounAn open and connected set in some topology. For example, the interval (0,1) as a subset of the real numbers.
8.nounAny DNS domain name, particularly one which has been delegated and has become representative of the delegated domain name and its subdomains.
9.nounA collection of DNS or DNS-like domain names consisting of a delegated domain name and all its subdomains.
10.nounA 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.
11.nounThe collection of computers identified by a domain's domain names.
12.nounA small region of a magnetic material with a consistent magnetization direction.
13.nounSuch a region used as a data storage element in a bubble memory.
14.noun(data processing) A form of technical metadata that represent the type of a data item, its characteristics, name, and usage.
15.nounThe highest rank in the classification of organisms, above kingdom; in the three-domain system, one of the taxa Bacteria, Archaea, or Eukaryota.
16.nounA folded section of a protein molecule that has a discrete function; the equivalent section of a chromosome