Definition of tree-living:
(n) :
A perennial woody plant taller and larger than a shrub with a wooden trunk and, at some distance from the ground, having leaves and branches.
(n) :
Any other plant (such as a large shrub or herb) that is reminiscent of the above in form and size.
(n) :
(computing theory) A recursive data structure in which each node has zero or more nodes as children, but does not share children with other nodes.
(n) :
(graph theory) A connected graph with no cycles or, if the graph is finite, equivalently a connected graph with n vertices and n−1 edges.
(n) :
(graphical user interface) A display or listing of entries or elements such that there are primary and secondary entries shown, usually linked by drawn lines or by indenting to the right.
(n) :
Any structure or construct having branches representing divergence or possible choices.