the pressure exerted by a fluid that is not moving or flowing.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
The pressure exerted by a liquid or gas, especially water or air, when the bodies on which the pressure is exerted are not in motion.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.