1 文書を見つけるための辞書。

• venn's diagram, venn diagram
• ベン図
• a diagram that uses circles to represent mathematical or logical sets pictorially inside a rectangle (the universal set); elements that are common to more than one set are represented by intersections of the circles
• 数学的、あるいは理論的な集合を現すために長方形（全体集合）の中に描かれた円を使用する図