RAD
Nuclear Physics
Radiation Absorbed Dose. The basic unit of an absorbed dose of ionizing radiation. One rad is equal to the absorption of 100 ergs of radiation energy per gram of matter.
- — Glossary of Nuclear Science Terms retrieved 2014-05-20
Defense
(1) Radiation Absorbed Dose. (2) Radiation Accumulated Dose.
Telecommunications
Abbreviation for radian(s).