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- DictionaryDo·main name sys·tem
noun
- 1. the system by which internet domain names and addresses are tracked and regulated.
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noun
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System to identify resources on a network
The Domain Name System (DNS) is a hierarchical and distributed name service that provides a naming system for computers, services, and other resources in the Internet or other Internet Protocol (IP) networks. It associates various information with domain names (identification strings) assigned to each of the associated entities. Wikipedia