13612042-n 'the unit of plane angle adopted under the Systeme International d'Unites';
 
Chinese (simplified) 弧度
English radian , rad
Indonesian radian
Italian radiante
Japanese ラジアン
Malaysian radian
Definitions
English
the unit of plane angle adopted under the Systeme International d'Unites
equal to the angle at the center of a circle subtended by an arc equal in length to the radius (approximately 57.295 degrees)
Japanese
国際単位系で採用されている平面角の単位
半径の長さに等しい1つの弧形に対応する円の中心での角度に等しい(約57.295度)
Relations
Hypernym: angular_unit
Meronym–Part: milliradian
Semantic Field: quantityn
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Maintainer: Francis Bond <bond@ieee.org>