Part of speech: noun

The act of radiating, or the state of being radiated.

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Usage examples "radiation":

  1. They will allow surgery, drugs with violent and dangerous side effects, painful and invasive testing procedures and radiation- all unpleasant and sometimes extremely uncomfortable. - "How and When to Be Your Own Doctor", Dr. Isabelle A. Moser with Steve Solomon.
  2. This conception suggests itself the more readily as, according to Lorentz's theory, electromagnetic radiation, like ponderable matter, brings impulse and energy with it, and as, according to the special theory of relativity, both matter and radiation are but special forms of distributed energy, ponderable mass losing its isolation and appearing as a special form of energy. - "Sidelights on Relativity", Albert Einstein.
  3. The mode of accomplishing this is by placing coils of steam, or hot water pipes, under windows, which warm the parlor walls and furniture, partly by radiation, and partly by the air warmed on the heated surfaces of the coils. - "The American Woman's Home", Catherine E. Beecher and Harriet Beecher Stowe.