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nightmare
nightmare definition - medical
night·mare (nītˈmârˌ)
noun- A dream arousing feelings of intense fear, horror, and distress.
- An event or experience that is intensely distressing.
The American Heritage® Medical Dictionary Copyright © 2009 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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