Definition
In tree structure, nodes are situated in a hierarchy connected by branches. Nodes that are higher than another as well as connected by a branch are said to dominate those beneath them. (Carnie, 2006, p. 120)
Domination is differentiated according to the closeness of the dominating node to its daughter(s). In other words, the relation between daughter and mother nodes determines whether the domination is exhaustive or immediate.
Examples

References
Carnie, A. (2006). Syntax: A generative introduction. John Wiley & Sons.