Active Directory tree (AD tree)
An Active Directory tree is a collection of domains within a Microsoft Active Directory network.
The term refers to the fact that each domain has exactly one parent, leading to a hierarchical tree structure. A group of Active Directory trees is known as a forest. Domains within the Active Directory tree structure have a transitive trust relationship, meaning that if a domain joins a tree, it automatically trusts all other domains in the tree.
This was last updated in July 2012
