Radiation is given off by a wide variety of processes, such as thermal activity, nuclear reactions (as in fission), and by radioactive decay. Published by Houghton Mifflin Company.The American Heritage® Science Dictionary Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. radiation - the spontaneous emission of a stream of particles or electromagnetic rays in nuclear decay The waves propagate through a vacuum at the speed of light. Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020Collins English Dictionary - Complete & Unabridged 2012 Digital Edition One of the fields is electrical and the other is magnetic. He was very familiar with the reality of what could happen: Tokyo could be covered with a really high dosage of Everything serene, snow piling on trees, over lawns, on houses, before we realize that all the snow is poisoned with She said that whenever she came into the room, she had felt the Attention is here drawn once more to the antagonistic reactions of temperature and The worst wounded had less than half a face, and that discolored by purple blotches of All Of These Words Are Offensive (But Only Sometimes)Absentee Ballot vs. Mail-In Ballot: Is There A Difference?What Is The Difference Between “Furlough” vs. “Layoff”?“Affect” vs. “Effect”: Use The Correct Word Every Time“Epidemic” vs. “Pandemic” vs. “Endemic”: What Do These Terms Mean?It’d be a real faux pas to miss this quiz on the words from August 3–9, 2020!to waver in mind or opinion; be indecisive or irresolute.Dictionary.com Unabridged All rights reserved.the process in which energy is emitted as particles or waves.the complete process in which energy is emitted by one body, transmitted through an intervening medium or space, and absorbed by another body.the emission or transfer of radiant energy as particles, electromagnetic waves, sound, etcthe particles, etc, emitted, esp the particles and gamma rays emitted in nuclear decaya group of nerve fibres that diverge from their common sourcethe act, state, or process of radiating or being radiatedthe fixing of points around a central plane table by using an alidade and measuring tapeThe act or condition of diverging in all directions from a center.The emission and propagation of energy in the form of rays or waves.The energy radiated or transmitted in the form of rays, waves, or particles.A stream of particles or electromagnetic waves that is emitted by the atoms and molecules of a radioactive substance as a result of nuclear decay.The radial arrangement of anatomical or histological parts.The spread of a group of organisms into new habitats.Streams of photons, electrons, small nuclei, or other particles. counter-radiation Source: A Dictionary of Geography Author(s): Susan Mayhew. — the study of metals and their structures and properties by the use of microscopy and x rays.the science or technique of making x-ray photographs of the kidneys, renal pelves, and ureters, using injection of opaque solutions or radiopaque dyes.

Copyright © 2011. They are able to pass through paper and aluminum, but not through a block of lead or concrete.the measurement of minute amounts of radiant energy, especially infrared spectra. — Electromagnetic and radioactive energy emitted as rays, waves, or particles.The raw bacon which clumsy Molly spares from her own scanty store that she may carry it to her neighbour's child to "stop the fits," may be a piteously inefficacious remedy; but the generous stirring of neighbourly kindness that prompted the deed has a beneficent I know a little of the principle of design, and I know this thing was not arranged on any laws of There is one end of the room where it is almost intact, and there, when the crosslights fade and the low sun shines directly upon it, I can almost fancy This temperature is only the temperature produced by the On the northern continents, the winter is rendered excessively cold by the On the six days of the week there is an atmosphere of quiet humor, a The best of beauty is a finer charm than skill in surfaces, in outlines, or rules of art can ever teach, namely a And thus, as a closer and still closer intimacy admitted me more unreservedly into the recesses of his spirit, the more bitterly did I perceive the futility of all attempt at cheering a mind from which darkness, as if an inherent positive quality, poured forth upon all objects of the moral and physical universe, in one unceasing The muse herself betrays her son, and enhances the gifts of wealth and well-born beauty by a He sits motionless, like a spider in the center of its web, but that web has a thousand They study energy radiation from the most violent stars in the universe.

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