radiation

IPA: reɪdiˈeɪʃʌn

The shooting forth of anything from a point or surface, like diverging rays of light.
The process of radiating waves or particles.
The transfer of energy via radiation.
Radioactive energy.
(evolutionary theory, countable) A rapid diversification of an ancestral species into many new forms.

Examples of "radiation" in Sentences

Still, the word "radiation" conjures up a vague sense of impending doom for most people.
This radiation is an afterglow of the violent processes assumed to have occurred in the early stages of the big bang.
"[A] Librarian told me that they were forced to take all the literature with the word 'radiation' and put it in [an] archive," Shapiro said.
But unless the radiation is at least a couple of orders of magnitude above background, the additional cancers due to radiation are indistinguishable among the cancers due to chemicals, foods, viruses, and ancestry.
The term radiation alone is used commonly for this type of energy, although it actually has a broader meaning. ... light of wave length 570 nm illuminates a diffraction grating. the second-order maximum is at angle 41.5 degre?
And in this paper, they show something much more striking, and that was that they did what they call a radiation -- and I'm not going to go into the details of it, actually it's quite complicated, but it isn't as complicated as they might make you think it is by the words they use in those papers.
One of the hypotheses put forward at the beginning of our research by Pierre Curie and myself consisted in assuming that the radiation is an emission of matter accompanied by a loss in weight of the active substances and that the energy is taken from the substance itself whose evolution is not yet completes and which undergoes an atomic transformation.