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rad

PRIMARY MEANINGS OF: rad

1
 n
a unit of absorbed ionizing radiation equal to 100 ergs per gram of irradiated material
2
 n
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)
FULL DEFINITIONS OF: rad
1

n a unit of absorbed ionizing radiation equal to 100 ergs per gram of irradiated material

Type of:
radioactivity unit
a measure of radioactivity
2

n 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)

Synonyms:
radian
Type of:
angular unit
a unit of measurement for angles
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