rad

(redirected from Rads)
Also found in: Thesaurus, Medical, Acronyms, Idioms, Encyclopedia.

rad 1

 (răd)
n.
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.

[r(adiation) a(bsorbed) d(ose).]

rad 2

 (răd)
adj. Slang
Excellent; wonderful.

[Short for radical.]

rad 3

abbr.
radian

rad

(ræd)
n
(Units) 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
[C20: shortened from radiation]

rad

symbol for
(Units) radian

rad1

(ræd)

n. Physics.
a unit of absorbed dose equal to 0.01 Gy. Compare dose (def. 4).
[1915–20; shortening of radiation]

rad2

(ræd)

n.
1. Informal. a radical.
adj.
2. Slang. fine; wonderful.
[1820–30; shortening of radical]

rad


Math.
radian.

rad.


Math.
1. radical.
2. radix.

rad

(răd)
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. A unit of radiation absorbed from a radioactive source.
2. A short form of radian, a unit of measure for plane angles. See centrad.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.rad - a unit of absorbed ionizing radiation equal to 100 ergs per gram of irradiated material
radioactivity unit - a measure of radioactivity
2.rad - the unit of plane angle adopted under the Systeme International d'Unites; equal to the angle at the center of a circle subtended by an arc equal in length to the radius (approximately 57.295 degrees)
angular unit - a unit of measurement for angles
milliradian - a unit of angular distance equal to one thousandth of a radian
References in periodicals archive ?
The average dose to the 160 million people living in the United States at the time was about 2 rads, about five times the dose given in a modern mammogram.
The RADS system is intended to be used for very close-in defense and can be utilized against small, lethal, rapidly moving hostile threats, either on land or at sea.
The Global Networking Team was created as a result of two factors that were converging," said Amnon Presler, President of RAD Data Communications.