Radiation

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Radiation Meaning and Definition in Dictionary

Definitions from Wordnet 2.0


  • (medicine) the treatment of disease (especially cancer) by exposure to radiation from a radioactive substance
  • the act of spreading outward from a central source
  • a radial arrangement of nerve fibers connecting different parts of the brain
  • the spread of a group of organisms into new habitats
  • energy that is radiated or transmitted in the form of rays or waves or particles
  • the spontaneous emission of a stream of particles or electromagnetic rays in nuclear decay
  • 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

Definitions from Wiktionary


  • energy that is radiated or transmitted in the form of rays or waves or particles ,
  • the act of spreading outward from a central source ,
  • 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; "he was suffering from radiation" ,
  • the spontaneous emission of a stream of particles or electromagnetic rays in nuclear decay ,
  • the spread of a group of organisms into new habitats ,
  • a radial arrangement of nerve fibers connecting different parts of the brain ,
  • (medicine) the treatment of disease (especially cancer) by exposure to a radioactive substance

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Radiation Meaning and Definition in Wikipedia


In physics, radiation is the emission or transmission of energy in the form of waves or particles through space or through a material medium.

This includes:

Radiation may also refer to the energy, waves, or particles being radiated.

Ionizing radiation comes from radioactive materials and x-ray machines and non-ionizing radiation (usually electromagnetic radiation) comes from other sources. Ionizing radiation carries more than 10 eV, which is enough to ionize atoms and molecules, and break chemical bonds. This is important for its harmfulness to living organisms. . Non-ionizing radiation does not cause microscopic damage, but some types can cause chemical changes or make things hotter.



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'Radiation' example sentence in quotations


* The double law of attraction and radiation or of sympathy and antipathy, of fixedness and movement, which is the principle of Creation, and the perpetual cause of life. - Albert Pike


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Radiation Sample Sentences in News



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