Words · Common
rad
/ɹæd/ · 3 letters · 3 distinct letters
- noun
a unit of absorbed ionizing radiation equal to 100 ergs per gram of irradiated material
- 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)