Poiseuille's law
noun
Poi·seuille's law
| \ pwä-ˈzə(r)z-, -ˈzwēz-, -ˈzə-ēz-
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Medical Definition of Poiseuille's law
: 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