Poiseuille's law
noun
Poi·seuille's law
pwä-ˈzə(r)z-, -ˈzwēz-, -ˈzə-ēz- 
: a statement in physics: the velocity of the steady flow of a fluid through a narrow tube (as a blood vessel or a catheter) varies directly as the pressure and the fourth power of the radius of the tube and inversely as the length of the tube and the coefficient of viscosity
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“Poiseuille's law.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/Poiseuille%27s%20law. Accessed 26 Nov. 2024.
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