Rad



Mathematics.
1.
radian; radians.
[rad] /ræd/
noun, Physics.
1.
a standard unit of absorbed dose of radiation equal to 0.01 2 .
[rad] /ræd/
noun
1.
Informal. .
adjective
2.
Slang. fine; wonderful.
Mathematics.
1.
.
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
symbol
1.
radian
abbreviation
1.
radical
2.
radius

“x-ray dose unit,” 1918, shortened form of radiation (q.v.). As shortened form of radical (n.), it is attested in political slang from 1820. Teen slang sense of “extraordinary, wonderful” is from late 1970s (see radical (adj.)).

rad 1 (rād)
n.
A unit of energy absorbed from ionizing radiation, equal to 100 ergs per gram or 0.01 joule per kilogram of irradiated material.

rad 2
abbr.
radian
rad
(rād)
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.

An acronym for radiation absorbed dose. A unit of energy absorbed from ionizing radiation.

adjective

Extraordinary; wonderful; awesome, chill, gnarly: Want to go to this way rad party? (late 1970s+ Teenagers)

noun

A radical (1820+)

programming
Rapid Application Development.
1.
radian
2.
radiation absorbed dose
3.
Slang radical (that is, excellent)
Royal Academy of Dancing
1.
radical
2.
radius
3.
radix

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