Understudy definition, to learn (a role) in order to replace the regular actor or actress when necessary. See more.
Radiation. radiation. (Science: radiobiology) propagation of energy through space. In the context of this report, it is electromagnetic radiation (x-rays or gamma rays) or corpuscular radiation (alpha particles, electrons, protons, neutrons) capable of producing ionisation.adiation. radiation. (Science: radiobiology) propagation of energy through space. In the context of this report, it is electromagnetic radiation (x-rays or gamma rays) or corpuscular radiation (alpha particles, electrons, protons, neutrons) capable of producing ionisation.
radiation 1555, from L. radiationem (nom. radiatio) a shining, radiation, noun of action from radiare to beam, shine, from radius beam of light (see radius). He had little fear of being picked up by radiation detectors, thanks to his absorber. This radiation of heat is productive of very momentous consequences. There was supposed to be a kind of radiation or infection passing from one nervous system to another. Through association there is a radiation in every direction.