Domain Name System
How to pronounce:
dəʊˈmeɪn neɪm ˈsɜːvɪs
Definition:
DNS for short. The Domain Name System (DNS) is a hierarchical and decentralized naming system for computers, services, or other resources connected to the Internet or a private network. It associates various information with domain names assigned to each of the participating entities. The Domain Name System delegates the responsibility of assigning domain names and mapping those names to Internet resources by designating authoritative name servers for each domain.