Poiseuille's law

[pwah-zweez]

noun

Physics, Mechanics.

1. the law that the velocity of a liquid flowing through a capillary is directly proportional to the pressure of the liquid and the fourth power of the radius of the capillary and is inversely proportional to the viscosity of the liquid and the length of the capillary.

Word History and Origins

Origin of Poiseuille's law¹

First recorded in 1880–85; poise ²

Example Sentences

Deviations from Poiseuille’s law in the capillaries make only a small correction to these values.

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