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Webster's New World College Dictionary » irradiation
irradiation
irradiation definition
ir·ra·dia·tion (-ā′s̸hən)
noun
- an irradiating or being irradiated; esp.,
- exposure to radiation
- emission of radiant energy
- irradiance (sense )
- Optics the apparent enlargement of a brightly lighted object seen against a dark background
Etymology: Fr < ML irradiatio
Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.
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