白はく銀ぎん比ひ

noun

silver ratio

Mathematical term for the ratio 1:√2, used in paper sizes and design. Also known as the silver mean or silver constant.

• 白はく銀ぎん比ひは、A判ばんやB判ばんの紙かみの縦たて横よこ比ひとして知しられている。

  The silver ratio is known as the aspect ratio of A-series and B-series paper.