Here you will find one or more explanations in English for the word radiation. Also in the bottom left of the page several parts of wikipedia pages related to the word radiation and, of course, radiation synonyms and on the right images related to the word radiation.
Radiation
Radiation Ra`di*a"tion, n. [L. radiatio: cf. F. radiation.]
1. The act of radiating, or the state of being radiated;
emission and diffusion of rays of light; beamy brightness.
2. The shooting forth of anything from a point or surface,
like the diverging rays of light; as, the radiation of
heat.