Definition of Parent Domain in Network Encyclopedia.
What is Parent Domain (in computer networking)?
Parent Domain is a domain in a Microsoft Windows Server domain tree whose Domain Name System (DNS) name forms the basis of subdomains called child domains. For example, the parent domain named microsoft.com could include three child domains named dev.microsoft.com, marketing.microsoft.com, and support.microsoft.com. A two-way transitive trust exists between a parent domain and its associated child domains.