Definition of RADIATION


Source: WordNet 3.1

  • 1. (

    ) energy that is radiated or transmitted in the form of rays or waves or particles ;

  • 2. (

    ) the act of spreading outward from a central source ;

  • 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" ;

  • 5. (

    ) the spread of a group of organisms into new habitats ;

  • 6. (

    ) a radial arrangement of nerve fibers connecting different parts of the brain ;

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