pressure-altitude variation

pressure-altitude variation

[′presh·ər ¦al·tə‚tüd ‚ver·ē′ā·shən]
(meteorology)
The pressure difference, in feet or meters, between mean sea level and the standard datum plane.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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