radiation
nounThe act or process of radiating.
nounEmission or propagation of energy in the form of waves or particles.
nounEnergy radiated or transmitted in the form of waves or particles.
nounA stream of particles or electromagnetic waves emitted by the atoms and molecules of a radioactive substance as a result of nuclear decay.
nounThe act of exposing or the condition of being exposed to such energy.
nounThe application of such energy, as in medical treatment.
nounRadial arrangement of parts, as of a group of nerve fibers connecting different areas of the brain.
nounAdaptive radiation