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