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negative pressure

negative pressure in Medicine

negative pressure n.
Pressure that is less than ambient temperature.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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negative pressure in Science
negative pressure  
See under pressure.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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