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Definition of Radian
1. Noun. 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).
Definition of Radian
1. n. An arc of a circle which is equal to the radius, or the angle measured by such an arc.
Definition of Radian
1. a unit of angular measure [n -S]
Medical Definition of Radian
1.
Lexicographical Neighbors of Radian
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