A tree is a perennial woody plant. It is most often defined as a woody plant that has secondary branches supported clear of the ground on a single main stem or trunk with clear ...
In computer science, a tree is a widely-used data structure that emulates a tree structure with a set of linked nodes. It is an acyclic and connected graph.
noun . 1. a plant having a permanently woody main stem or trunk, ordinarily growing to a considerable height, and usually developing branches at some distance from the ground.