domain

noun

1. 1

   A geographic area owned or controlled by a single person or organization.

   “The king ruled his domain harshly.”

2. 2

   A field or sphere of activity, influence or expertise.

   “Dealing with complaints isn't really my domain: get in touch with customer services.”

3. 3

   A group of related items, topics, or subjects.

4. 4

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

5. 5

   The set of input (argument) values for which a function is defined.

6. 6

   A ring with no zero divisors; that is, in which no product of nonzero elements is zero.

7. 7

   An open and connected set in some topology. For example, the interval (0,1) as a subset of the real numbers.

8. 8

   Any DNS domain name, particularly one which has been delegated and has become representative of the delegated domain name and its subdomains.

9. 9

   A collection of DNS or DNS-like domain names consisting of a delegated domain name and all its subdomains.

10. 10

    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.

11. 11

    The collection of computers identified by a domain's domain names.

12. 12

    A small region of a magnetic material with a consistent magnetization direction.

13. 13

    Such a region used as a data storage element in a bubble memory.

14. 14

    (data processing) A form of technical metadata that represent the type of a data item, its characteristics, name, and usage.

15. 15

    The highest rank in the classification of organisms, above kingdom; in the three-domain system, one of the taxa Bacteria, Archaea, or Eukaryota.

16. 16

    A folded section of a protein molecule that has a discrete function; the equivalent section of a chromosome