樹じゅ形けい図ずじゅけいずMeanings1nountree diagramA diagram showing hierarchical branching, used in linguistics, mathematics, computer science, and other fields.言げん語ご学がくの授じゅ業ぎょうで、文ぶんの構こう造ぞうを樹じゅ形けい図ずで表あらわした。In linguistics class, we represented the sentence structure with a tree diagram.