radiation
— Noun
– English
～ the spontaneous emission of a stream of particles or electromagnetic rays in nuclear decay
radiation diagram
— Noun
– English
～ graphical representation (in polar or Cartesian coordinates) of the spatial distribution of radiation from an antenna as a function of angle
radiation
— Noun
– English
～ (medicine) the treatment of disease (especially cancer) by exposure to a radioactive substance
radiation
— Noun
– English
～ energy that is radiated or transmitted in the form of rays or waves or particles
radiation field
— Noun
– English
～ a field that represents the energy lost from the radiator to space
radiation
— Noun
– English
～ a radial arrangement of nerve fibers connecting different parts of the brain
radiation pressure
— Noun
– English
～ the minute pressure exerted on a surface normal to the direction of propagation of a wave
radiation pattern
— Noun
– English
～ graphical representation (in polar or Cartesian coordinates) of the spatial distribution of radiation from an antenna as a function of angle
radiator
— Noun
– English
～ any object that radiates energy
radiator
— Noun
– English
～ heater consisting of a series of pipes for circulating steam or hot water to heat rooms or buildings
radiator
— Noun
– English
～ a mechanism consisting of a metal honeycomb through which hot fluids circulate; heat is transferred from the fluid through the honeycomb to the airstream that is created either by the motion of the vehicle or by a fan
radiator grille
— Noun
– English
～ grating that admits cooling air to car's radiator
radiator cap
— Noun
– English
～ cap on the opening in the top of a radiator through which a coolant liquid can be added
radiator hose
— Noun
– English
～ a flexible hose between the radiator and the engine block
radical
— Noun
– English
～ (mathematics) a quantity expressed as the root of another quantity
radical
— Noun
– English
～ a person who has radical ideas or opinions
radical chic
— Noun
– English
～ an affectation of radical left-wing views and the fashionable dress and lifestyle that goes with them
radical
— Noun
– English
～ an atom or group of atoms with at least one unpaired electron; in the body it is usually an oxygen molecule that has lost an electron and will stabilize itself by stealing an electron from a nearby molecule; "in the body free radicals are high-energy particles that ricochet wildly and damage cells"
radical
— Noun
– English
～ a character conveying the lexical meaning of a logogram
radical cell
— Noun
– English
～ a cell of terrorists (usually 3 to 5 members); "to insure operational security the members of adjacent terrorist cells usually don't know each other or the identity of their leadership"