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Definition of rad
: a unit of absorbed dose of ionizing radiation equal to an energy of 100 ergs per gram of irradiated material
Explore Merriam-Webster
Origin and Etymology of rad
radiation absorbed dose
rad
Definition of rad
Recent Examples of rad from the Web
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Celebrate the fourth of July in OB-style with a beach day: picnicking, playing in the waves, shopping along Newport Avenue and watching a rad sunset.
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Celebrate the fourth of July in OB-style with a beach day: picnicking, playing in the waves, shopping along Newport Avenue and watching a rad sunset.
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Snack to Snack Champions Wings, Sandwiches, and All of the Meats Make Some Pizzas, Be Everyone's Favorite Person Top with rad ingredients, throw them in the oven, and slice 'em up for all to share.
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Solo Eyewear This stellar sunglass company offers more than just a pair of rad shades.
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If the new Star Wars trilogy hasn't been exciting enough, the recent launch of various comic books — most of them pretty rad — have fleshed out stories not seen in the movies.
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That was a rad little flash in the sky to end band practice, San Diego.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'rad'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
First Known Use of rad
1982
rad
Definition of rad
1 radian
2 radius
3 radix
RAD Defined for English Language Learners
rad
Definition of rad for English Language Learners
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: very appealing or good
Medical Dictionary
rad
playMedical Definition of rad
: a unit of absorbed dose of ionizing radiation equal to an energy of 100 ergs per gram of irradiated material
rad
Medical Definition of rad
root—used in writing prescriptions
Origin and Etymology of rad
Latin radix
Learn More about rad
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See words that rhyme with rad Nglish: Translation of rad for Spanish speakers Britannica English: Translation of rad for Arabic speakers Britannica.com: Encyclopedia article about rad
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