Domain is the distinguished part of an abstract or physical space where something exists, is performed, or is valid.
For example, we may talk about: domain of interest, domain of activity.
This concept is used in every branch/sector/field of human activity.
It also has several meanings:
- synonymous with a metaphorical field, e.g. "the domain of computer science"
- domain (biology), a subdivision even larger than a kingdom
- protein domain, an autonomously folding functional module of a protein
- domain (physics), a region of a solid inside which a property is uniform (for example magnetic domain in ferromagnetism)
- atomic domain - a domain whose elements are classified as indivisible units
- domain of activity (in cognitive science), a mental or physical area where an intelligent agent/entity acts or is able to act, its determination is essential for the efficacy of reasoning, comprehension and cooperation
- domain knowledge, a specific expert knowledge valid for a pre-selected area of activity (for ex. nuclear plant engineering, negotiation methods, surgery) - it is domain-dependent
In mathematics domain can refer to:
In information technology, the term domain can refer to: