From The Free On-line Dictionary of Computing (19 January 2023): ply <mathematics, data> 1. Of a node in a tree, the number of branches between that node and the root. 2. Of a tree, the maximum ply of any of its nodes. (1998-12-29)
ply
<mathematics, data> 1. Of a node in a tree, the number of branches between that node and the root.
2. Of a tree, the maximum ply of any of its nodes.
(1998-12-29)