American Heritage® Dictionary of the English Language, Fourth Edition
- n. The act or process of radiating: the radiation of heat and light from a fire.
- n. Physics Emission and propagation and emission of energy in the form of rays or waves.
- n. Physics Energy radiated or transmitted as rays, waves, in the form of particles.
- n. Physics A stream of particles or electromagnetic waves emitted by the atoms and molecules of a radioactive substance as a result of nuclear decay.
- n. The act of exposing or the condition of being exposed to such energy.
- n. The application of such energy, as in medical treatment.
- n. Anatomy Radial arrangement of parts, as of a group of nerve fibers connecting different areas of the brain.
- n. The spread of a group of organisms into new habitats.
- n. Adaptive radiation.
Century Dictionary and Cyclopedia
- n. The act of radiating, or the state of being radiated; specifically, emission and diffusion of rays of light and the so-called rays of heat. Physically speaking, radiation is the transformation of the molecular energy of a hot body—that is, any body above the absolute zero (—273° C.)—into the wave-motion of the surrounding ether, and the propagation of these ether waves through space. Hence, every body is the source of radiation, but the character of the radiation varies, depending chiefly upon the temperature of the body; it is called
luminousor obscure, according as it is or is not capable of exciting the sensation of light. See further radiant energy (under energy), also heat, light, spectrum.
- n. The divergence or shooting forth of rays from a point or focus.
- n. In zoology, the structural character of a radiate; the radiate condition, quality, or type; the radiate arrangement of parts. Also radiism.
- n. In biology: The divergent evolution of several different organisms from a single ancestral form: as, the radiation of the placental mammals.
- n. A group of organisms that is undergoing divergent modification.
- n. In psychology, the extension of excitation within the nervous system to give rise to concomitant or secondary sensations.
- n. The shooting forth of anything from a point or surface, like the diverging rays of light; as, the radiation of heat.
- n. The process of radiating waves or particles.
- n. The transfer of energy via radiation (as opposed to convection or conduction)
- n. Radioactive energy
GNU Webster's 1913
- 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.
- n. a radial arrangement of nerve fibers connecting different parts of the brain
- n. the spread of a group of organisms into new habitats
- n. syndrome resulting from exposure to ionizing radiation (e.g., exposure to radioactive chemicals or to nuclear explosions); low doses cause diarrhea and nausea and vomiting and sometimes loss of hair; greater exposure can cause sterility and cataracts and some forms of cancer and other diseases; severe exposure can cause death within hours
- n. the act of spreading outward from a central source
- n. energy that is radiated or transmitted in the form of rays or waves or particles
- n. the spontaneous emission of a stream of particles or electromagnetic rays in nuclear decay
- n. (medicine) the treatment of disease (especially cancer) by exposure to a radioactive substance
- From Latin radiatio. (Wiktionary)
“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?”
“[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.”
“This radiation is an afterglow of the violent processes assumed to have occurred in the early stages of the big bang.”
“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.”
“Still, the word "radiation" conjures up a vague sense of impending doom for most people.”
“I'm not a nuclear physicist, I'm not a doctor, but you hear the word radiation, and yes it could be like having a chest x-ray," she says.”
“Other than the word radiation and the reference to the Centers for Disease Control, Rapp hadn’t a clue as to what any of this meant.”
“I wonder if the cancer given to you by the radiation is offset by the cancer killed by the antioxidants?”
These user-created lists contain the word ‘radiation’.
All the scientific words found in the official EU nomenclature. For the screening I used Vocabgrabber of the Visual Thesaurus.
includes words of the "Prodcom list"
words associated with LASERS.
( open list, randomness )
NOTE: i'd like to keep the list specific to the LASER itself (Any LASER), and leave out applied sciences..
denoting radio waves or broadcasting; connected with radioactivity; belonging to the radius
i suppose, all of the words & phrases yoni wolf uses in alopecia, that i love.
Very basic words for ESL students.
Children From Russia Spend Summers in California
Powers revealed so far on the show Heroes
Not just buzzkills, these words make you question whether you really value life and live every moment--and if not, how can you start?
After you read this, I recommend reading something l...
Looking for tweets for radiation.