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Pascal's law Pas·cal's law (pā-skālz', pä-skälz')
The principle that fluids at rest transmit pressure equally in every direction.
|Pascal's law |
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).