downtree /ˈdaʊn.tɹiː/adjective 1noun 1forms 1 adjective1 •Lower in a tree data structure. noun1 •A subtree of a tree data structure that is immediately below (closer to the tree root) the current node.[…] this data structure differs from the tree […] illustrated in Fig. 1, only by having downpointers replaced by downtrees. — 1985 formsdowntrees
