irradiation

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noun ir·ra·di·a·tion \i-ˌrā-dē-ˈā-shən\

Definition of irradiation

  1. 1 :  exposure to radiation (such as X-rays or alpha particles)

  2. 2 :  the application of radiation (such as X-rays or gamma rays) for therapeutic purposes or for sterilization (as of food); also :  partial or complete sterilization by irradiation

Recent Examples of irradiation from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'irradiation'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of irradiation

1901


IRRADIATION Defined for Kids

irradiation

play
noun ir·ra·di·a·tion \i-ˌrā-dē-ˈā-shən\

Definition of irradiation for Students

  1. :  exposure to radiation


Medical Dictionary

irradiation

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noun ir·ra·di·a·tion \ir-ˌād-ē-ˈā-shən\

Medical Definition of irradiation

  1. 1a:  the radiation of a physiologically active agent from a point of origin within the body; especially :  the spread of a nerve impulse beyond the usual conduction pathb:  apparent enlargement of a light or bright object or surface when displayed against a dark background

  2. 2a:  exposure to radiation (as X-rays or alpha particles)b:  application of radiation (as X-rays or gamma rays) for therapeutic purposes or for sterilization (as of food)

  3. 3:  irradiance



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