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View synonyms for rad

rad

1

[ rad ]

noun

, Physics.
  1. a unit of absorbed dose of radiation equal to 0.01 gray: not a standard SI unit, the rad is still used, especially in the U.S., but it is increasingly disfavored.


rad

2

[ rad ]

noun

  1. Informal. a radical, especially a person with extreme views on political and social issues.

adjective

, rad·der, rad·dest.
  1. Slang. excellent; wonderful; cool:

    a high speed, high energy, totally rad racing game.

rad

3

[ rad ]

abbreviation for

, Mathematics.
  1. radian; radians.

rad.

4

abbreviation for

, Mathematics.
  1. radical.
  2. radix.

rad.

1

abbreviation for

  1. radical
  2. radius


rad

2

/ ræd /

noun

  1. 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

rad

3

symbol for

  1. radian

rad

/ răd /

  1. 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.


rad

  1. An acronym for r adiation a bsorbed d ose. A unit of energy absorbed from ionizing radiation .


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Word History and Origins

Origin of rad1

First recorded in 1915–20; r(adiation) a(bsorbed) d(ose)

Origin of rad2

First recorded in 1820–25 rad 2for 1; 1975–80 rad 2for 2; shortening of radical

Origin of rad3

First recorded in 1910–15; shortening

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Word History and Origins

Origin of rad1

C20: shortened from radiation

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Example Sentences

Jim really paved the way—on film and in television—for people to see young, rad chicks kick ass and take names.

If Hugh Jackman is totally heterosexual, his mode is a confusing—and not in a good, rad way—butch-camp.

Nashville: Broadman Holman Publishers, 1996 Rad, Gerhard von.

In October 2007, Hourani launched his first ready-to-wear unisex line, RAD by Rad Hourani, at a small art gallery in Paris.

The ‘Today’ Show Horses Around Who knew David Gregory was such a rad dancer?

Since ginger is not stated to be one of the ingredients of the compound, it, perhaps, may be the mysterious stranger latalia rad.

Professor Day reports that he was unable to find any mention of the drug of latalia rad.

This would seem to indicate that what has already been intimated by The Journal—​namely, that latalia rad.

This seems very open and above board, except as to quantities, until one tries to find out what latalia rad.

Experts to whom this remedy was submitted were unable even to find mention of such a drug or plant as latalia rad.

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racyRADA