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irradiation

Pronunciation: i-ra'de-a'shun

Definition:

  1. The subjective enlargement of a bright object seen against a dark background.
  2. Exposure to the action of electromagnetic radiation (heat, light, x-rays).
  3. The spreading of nervous impulses from one area in the brain or cord, or from a tract, to another tract.

[L. ir-radio, (in-r), pp. -radi-atus, to beam forth]

See Also: radiation

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© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.
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