Rad meaning

răd
The definition of rad is slang for an excellent person or thing.

An example of rad is a bright sunny day spent with friends; a rad day.

adjective
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5
Radical.
abbreviation
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7
Rad is defined as a unit of energy that has been absorbed from radiation.

An example of a rad is four doses of radiation absorbed into the skin.

noun
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Abbreviation of radian.
noun
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3
(automotive, plumbing, slang) Abbreviation of radiator.
noun
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3
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Excellent; wonderful.
adjective
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Radical.
abbreviation
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3
(1) (Rapid Application Development) Developing systems incrementally and delivering working pieces every three to four months, rather than waiting until the entire project is programmed before implementing it. Over the years, many information projects have failed, because, by the time the implementation took place, the business had changed.RAD employs a variety of automated design and development tools, including CASE, 4GLs, visual programming and GUI builders, all of which help create prototypes and running applications faster than by coding program statements a line at a time. The term was coined years ago by industry guru James Martin and focuses on personnel management and user involvement as much as on technology. Joint application development is another RAD concept (see JAD).The term is also used in a more general way to refer to an environment that produces applications quickly and efficiently.
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(slang) Excellent, short for radical.
adjective
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Radius.
abbreviation
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1
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Radix.
abbreviation
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1
A basic unit of an absorbed dose of radiation, equal to the absorption of 100 ergs of energy per gram of material or 0.01 joule per kilogram of material (0.01 gray or 1.1 roentgen)
noun
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1
Radian(s)
abbreviation
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1
Radius.
abbreviation
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1
Radix.
abbreviation
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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.
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A unit of energy absorbed from ionizing radiation, equal to 100 ergs per gram or 0.01 joule per kilogram of irradiated material. It has been replaced as a standard scientific unit by the gray.
noun
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Radian.
abbreviation
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2
(metrology) A non-SI unit of absorbed dose of radiation, equal to 0.01 gray.
noun
1
2

Origin of rad

  • r(adiation) a(bsorbed) d(ose)
    From American Heritage Dictionary of the English Language, 5th Edition
  • Short for radical
    From American Heritage Dictionary of the English Language, 5th Edition