Head length index - Head width index

Japanese: 頭の長幅示数 - あたまのちょうふくしすう
Head length index - Head width index

…To compare the head shapes of various races, the cephalic index of the living is used. It is (head width ÷ head length) × 100, and is therefore also called the head width index. Here, head width is the width from side to side of the widest part of the head, and head length is the straight line distance between the eyebrows and the most prominent point at the back of the head (i.e. the longest diameter). …

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

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…種々の人種の頭型を比較するために頭示数cephalic index of the livingというものが用いられる。これは(頭幅÷頭長)×100で,したがって〈頭の長幅示数〉とも称せられる。ここに頭幅とは頭のいちばん幅の広いところの左右径,頭長とはまゆの間と後頭部の最も突出した点との間の直線距離(すなわち最大長径)である。…

※「頭の長幅示数」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

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