Nasal index

…Based on the shape of the nasal bridge, noses can be classified as straight, convex, or concave, but a pathologically advanced concave nose is called a saddle nose. The nasal index is calculated by dividing the maximum width of the external nose by its maximum length and multiplying the result by 100. A nasal index of 47 or less is called a narrow nose, 47 to 51 is called a medium nose, and 51 or more is called a wide nose. …

*Some of the terminology that refers to "nasal index" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…鼻背の形から直鼻，凸鼻，凹鼻とに分けるが，凹鼻で病的に程度の進んだものを鞍鼻（あんび）という。外鼻の最大幅を最大長で除して100を乗じたものを鼻示数nasal indexという。鼻示数が47以内を狭鼻，47～51を中鼻，51以上を広鼻という。…

※「nasal index」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報