rad
Dictionary
noun
- A non-SI unit of absorbed dose of radiation, equal to 0.01 gray.
Synonyms:rd
noun
- In the International System of Units, the derived unit of plane angular measure of angle equal to the angle subtended at the centre of a circle by an arc of its circumference equal in length to the radius of the circle. Symbol: rad
noun
- Anything which radiates or emits rays.
- A device that lowers engine coolant temperature by conducting heat to the air, through metal fins.
- (of buildings) A finned metal fixture that carries hot water or steam in order to heat a room.
- A type of antenna.
adjective
- Favoring fundamental change, or change at the root cause of a matter.
"His beliefs are radical."
- Pertaining to a root (of a plant).
- Pertaining to the basic or intrinsic nature of something.
- Thoroughgoing; far-reaching.
"The spread of the cancer required radical surgery, and the entire organ was removed."
- Of or pertaining to the root of a word.
- (of a sound) Produced using the root of the tongue.
- Involving free radicals.
- Relating to a radix or mathematical root.
"a radical quantity; a radical sign"
- (1980s & 1990s) Excellent; awesome.
"That was a radical jump!"
noun
- The distance between the front and rear sights of a firearm.
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