Bernoulli's principle

British

noun

physics the principle that in a liquid flowing through a pipe the pressure difference that accelerates the flow when the bore changes is equal to the product of half the density times the change of the square of the speed, provided friction is negligible

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of Bernoulli's principle

C19: named after Daniel _Bernoulli

Example Sentences

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Bernoulli's principle

Guided by Eric, we watched planes from the viewing deck at the Santa Monica Airport, where he explained Bernoulli’s principle.

From Los Angeles Times ● Jul. 17, 2026

The air above the wing is sped up in accordance with Bernoulli’s principle.

From Scientific American ● Feb. 4, 2020

Without mentioning Bernoulli by name, he gave an account that is consistent with Bernoulli’s principle by saying that fluid pressure is greater where its velocity is slower, and vice versa.

From Scientific American ● Feb. 4, 2020

Explain how this works in terms of Bernoulli's principle.

From Textbooks ● Aug. 12, 2015

Paper-plane builder Kline is sure that he has somehow violated Bernoulli's principle.

From Time Magazine Archive

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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023