doubly
131Binary tree — Not to be confused with B tree. A simple binary tree of size 9 and height 3, with a root node whose value is 2. The above tree is unbalanced and not sorted. In computer science, a binary tree is a tree data structure in which each node has at… …
132Heavy water — Not to be confused with hard water or tritiated water. Deuterium oxide IUPAC name …
