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Meaning of rad in English. rad. adjective. slang uk / ræd / us / ræd / Add to word list. extremely exciting or good: a rad new computer game. SMART Vocabulary: related words and phrases. Informal words for good. A-OK. amazeballs. apple pie. awesomesauce. badass. dank. jim-dandy. juicy. killer. knock spots off something idiom. like a boss idiom.
A unit used to measure energy absorbed by a material from radiation. One rad is equal to 100 ergs per gram of material. Many scientists now measure this energy in grays rather than in rads.
The meaning of RAD is a unit of absorbed dose of ionizing radiation equal to an energy of 100 ergs per gram of irradiated material. How to use rad in a sentence.
The radian, denoted by the symbol rad, is the unit of angle in the International System of Units (SI) and is the standard unit of angular measure used in many areas of mathematics. It is defined such that one radian is the angle subtended at the centre of a circle by an arc that is equal in length to the radius.
noun. a former unit of absorbed ionizing radiation dose equivalent to an energy absorption per unit mass of 0.01 joule per kilogram of irradiated material. 1 rad is equivalent to 0.01 gray.
1 ENTRIES FOUND: rad (adjective) rad / ˈ ræd/ adjective. radder; raddest. Britannica Dictionary definition of RAD. [also more rad; most rad] US slang. : very appealing or good. The party was totally rad. [= awesome, cool]
The rad is a unit of absorbed radiation dose, defined as 1 rad = 0.01 Gy = 0.01 J/kg. It was originally defined in CGS units in 1953 as the dose causing 100 ergs of energy to be absorbed by one gram of matter.
