The reciprocal of curvature. It is equal to the radius of a circle of curvature, hence the name. (Engineering Dictionary (1886)) Source: The Selected Edition of the Japanese Language Dictionary About the Selected Edition of the Japanese Language Dictionary Information |
〘名〙 曲率の逆数。曲率円の半径に等しいのでこの名がある。〔工学字彙(1886)〕
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