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1

rad

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noun \ˈrad\

Definition of rad

  1. :  a unit of absorbed dose of ionizing radiation equal to an energy of 100 ergs per gram of irradiated material



Origin and Etymology of rad

radiation absorbed dose


First Known Use: circa 1953


2

rad

adjective

Simple Definition of rad

  • : very appealing or good

Source: Merriam-Webster's Learner's Dictionary

Full Definition of rad

slang

  1. :  cool 7, radical

1982

First Known Use of rad

1982


3

rad

abbreviation

Definition of rad

  1. 1 radian

  2. 2 radius

  3. 3 radix




Medical Dictionary

rad

play
noun \ˈrad\

Medical Definition of rad

  1. :  a unit of absorbed dose of ionizing radiation equal to an energy of 100 ergs per gram of irradiated material




rad

abbreviation

Medical Definition of rad

  1. root—used in writing prescriptions



Origin and Etymology of rad

Latin radix



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