radian

n. 弧度 [计] 弧度

发音

其它 /ˈɹeɪdiən/

词形变化

radians 复数 radians

别名

rad.

释义与例句

n.
  1. 1.

    In the International System of Units, the derived unit of plane angle: the angle subtended at the centre of a circle by an arc of its circumference equal in length to the radius of the circle.

    弧度

    数学

词汇关系

名词

同义词 1

rad

部分词 1

milliradian

词源

From radius + -an.

来源：wiktionary