rad | ||
1. | [ noun ] (physics) a unit of absorbed ionizing radiation equal to 100 ergs per gram of irradiated material | |
Related terms: | radioactivity_unit | |
2. | [ noun ] the unit of plane angle adopted under the System 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 | |
Related terms: | angular_unit milliradian | |
Similar spelling: |
raid Rady Rado Rada radio rat Rath rate ratty Ratti ratio Raitt raita |