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单词 radiation
释义 Noun: radiation  `reydee'eyshun
  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 diarrhoea 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"
    - radiation sickness, radiation syndrome 
  4. The spontaneous emission of a stream of particles or electromagnetic rays in nuclear decay
    - radioactivity 
  5. The spread of a group of organisms into new habitats 
  6. A radial arrangement of nerve fibers connecting different parts of the brain 
  7. (medicine) the treatment of disease (especially cancer) by exposure to a radioactive substance
    - radiotherapy, radiation therapy, actinotherapy, irradiation

Derived forms: radiations

See also: radiate

Type of: action, activity, emanation, emission, energy, free energy, natural action, natural process, neural structure, spread, spreading, syndrome, therapy

Encyclopedia: Radiation Radiation, Radioactivity Radiation, nuclear

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更新时间:2024/11/14 2:19:13