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Meaning & Definition of Radiation in English

English

Radiation

/redieʃən/

noun

1. Energy that is radiated or transmitted in the form of rays or waves or particles

    synonym:
  • radiation

2. The act of spreading outward from a central source

    synonym:
  • radiation

3. 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"
    synonym:
  • radiation sickness
  • ,
  • radiation syndrome
  • ,
  • radiation

4. The spontaneous emission of a stream of particles or electromagnetic rays in nuclear decay

    synonym:
  • radiation
  • ,
  • radioactivity

5. The spread of a group of organisms into new habitats

    synonym:
  • radiation

6. A radial arrangement of nerve fibers connecting different parts of the brain

    synonym:
  • radiation

7. (medicine) the treatment of disease (especially cancer) by exposure to a radioactive substance

    synonym:
  • radiotherapy
  • ,
  • radiation therapy
  • ,
  • radiation
  • ,
  • actinotherapy
  • ,
  • irradiation

Examples of using

Cleaning up radiation, in soil, air, and water, became possible in the 23rd century.
Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure.