radian

English dictionary entry

Meanings

noun

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.

/ˈɹeɪdiən/ LL-Q1860 (eng)-Vealhurl-radian.wav

radian radians

From radius + -an.

mul:rad mul:ᶜ degree gradian

microradian milliradian picoradian radiansphere steradian

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