• energy radiated in the form of waves or particles; process of emitting energy in electromagnetic waves or moving particles; act of emitting, act of beaming or glowing
• radiation is very small particles of a radioactive substance that can cause illness and death.
• radiation is also energy, especially heat, that comes from a particular source.
• disease which results from overexposure to radiation
• radiation sickness is an illness that is caused by a person being exposed to too much radiation.
• treatment of diseases by exposure to high-energy radiation from radioactive sources, use of radiation to damage cancer cells, radiotherapy
• low-level radiation suffusing the surface of the earth
• streams of highly penetrating charged particles bombarding the earth from outer space
• any type of electromagnetic wave (waves composed of undulating electrical fields and magnetic fields)
exposure to radiation
• being in contact with or unprotected from radioactive material
• ionized radiation whose source is in the process of atomic splitting or nuclear fission
• radiation of heat
was exposed to radiation
• was not protected from electromagnetic waves, worked in the proximity of radiation