Posted in Uncategorized Tree structureの意味・使い方・読み方 | Weblio英和辞書 November 14, 2025 It is named a “tree structure” because the classic resembles a tree, even though the chart is generally upside down compared to an actual tree, with the “root” at the top and the “leaves” at the bottom. https://ejje.weblio.jp/content/Tree+structure