| The American Heritage® Dictionary of the English Language: Fourth Edition. 2000. |
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| chronic fatigue syndrome |
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| NOUN: | abbr. CFS A syndrome characterized by debilitating fatigue and a combination of flulike symptoms such as sore throat, swollen lymph glands, low-grade fever, headaches, and muscle pain or weakness.
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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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