| The American Heritage® Dictionary of the English Language: Fourth Edition. 2000. |
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| radiance |
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| SYLLABICATION: | ra·di·ance |
| PRONUNCIATION: |  r  d - ns |
| VARIANT FORMS: | also ra·di·an·cy (-n-s) |
| NOUN: | 1. The quality or state of being radiant. 2. Physics The radiant energy emitted per unit time in a specified direction by a unit area of an emitting surface.
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| The American Heritage® Dictionary of the English Language, Fourth Edition. Copyright © 2000 by Houghton Mifflin Company. Published by the Houghton Mifflin Company. All rights reserved. |
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