rad

Words with a similar base: rad, radian

'rad'

[rad.n.01] as in: a unit of absorbed ionizing radiation equal to 100 ergs per gram of irradiated material

'rad'

[radian.n.01] as in: 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

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degrees)