The poise (symbol P; )'s the unit of dynamic viscosity in the centimetre gram second system of units. It's named after Jean Louis Marie Poiseuille.:1 P = 1 g·cm−1·s−1 The analogous unit in the International System of Units's the pascal second (Pa·s): » 1 Pa·s = 1 kg·m−1·s−1 = 10 P The poise's often used with the metric prefix centi-. A centipoise's one one-hundredth of a poise, and one millipascal-second (mPa·s) in SI units. (1 cP = 10-2… (More on Poise)