Radiation
[reɪdɪ'eɪʃ(ə)n] or [,redɪ'eʃən]
Definition
(noun.) the act of spreading outward from a central source.
(noun.) a radial arrangement of nerve fibers connecting different parts of the brain.
(noun.) the spread of a group of organisms into new habitats.
(noun.) energy that is radiated or transmitted in the form of rays or waves or particles.
(noun.) the spontaneous emission of a stream of particles or electromagnetic rays in nuclear decay.
Typist: Robbie--From WordNet
Definition
(n.) The act of radiating, or the state of being radiated; emission and diffusion of rays of light; beamy brightness.
(n.) The shooting forth of anything from a point or surface, like the diverging rays of light; as, the radiation of heat.
Typist: Virginia
Synonyms and Synonymous
n. Irradiance, irradiation, emission of rays.
Typist: Pearl
Examples
- The miracle of a bird's flight, that st eady and almost effortless motion, had interested Langley intensely--as had also the sun's radiation--from the years of his childhood. Walter Libby. An Introduction to the History of Science.
- Radiation is a property inherent in ur anium and independent both of light and of phosphorescence. Walter Libby. An Introduction to the History of Science.
- Days elapsed without any apparent diminution o f the radiation. Walter Libby. An Introduction to the History of Science.
- It is through these radiations that spontaneous transformation takes place. Walter Libby. An Introduction to the History of Science.
- In the mean time the French scientist obtained radiations from metallic uranium and from uranous salts. Walter Libby. An Introduction to the History of Science.
- Schmidt published the results of their studies of the radiations of the salts o f thorium. Walter Libby. An Introduction to the History of Science.
- He sits motionless, like a spider in the center of its web, but that web has a thousand radiations, and he knows well every quiver of each of them. Arthur Conan Doyle. The Memoirs of Sherlock Holmes.
Edited by Georgina