- the law that an external pressure applied to a fluid in a closed vessel is uniformly transmitted throughout the fluid.
Origin of Pascal's law
named after Pascal
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Pascal's law(pă-skălz′, pä-skälz′)
- The principle that fluids at rest transmit pressure equally in every direction.
- The principle that external static pressure exerted on a fluid is distributed evenly throughout the fluid. Differences in static pressure within a fluid thus arise only from sources within the fluid (such as the fluid's own weight, as in the case of atmospheric pressure).
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.