Rad — synonyms, definition

1. rad (Noun)

radian

rad (Noun) — A unit of absorbed ionizing radiation equal to 100 ergs per gram of irradiated material.

rad (Noun) — The unit of plane angle adopted under the Systeme International d'Unites; equal to the angle at the centre of a circle subtended by an arc equal in length to the radius (approximately 57.295 degrees).

angular unit radioactivity unit milliradian