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1. Roadian: In the geologic timescale, the Roadian is an age or stage of the Permian. It is the earliest or lower of three subdivisions of the Guadalupian Epoch or Series. (Earth) [100%] 2023-10-28 [Roadian] [Permian geochronology]...
2. Roadian: In the geologic timescale, the Roadian is an age or stage of the Permian. It is the earliest or lower of three subdivisions of the Guadalupian Epoch or Series. (Fifth stage of the Permian) [100%] 2024-06-16 [Roadian] [Permian geochronology]...

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1. Radian (comics): Radian, in comics, may refer to. (Comics) [77%] 2023-02-26
2. Radian: The angle corresponding to an arc on a circle with length equal to the radius; thus, $180$ degrees is $\pi$ radians; it is approximately $57^\circ17'44''$. A radian is taken as the unit of measurement of angles in the ... (Mathematics) [77%] 2023-03-05