(centi) Poise is a measurement of viscosity of liquids. It is particularly important in matching hand soaps with dispensers.

Here is more information about centipoise (plural centipoises):
1. A cgs unit of measure of absolute viscosity. (The viscosity of water is one centipoise. The lower the number, the less viscous the material.) Symbol: cP.
2. The poise (symbol P; pronounced /ˈpwɑːz/) is the unit of dynamic viscosity in the centimeter gram second system of units. It is named after Jean Louis Marie Poiseuille.
3. 1 P = 1 g•cm−1•s−1
4. The analogous unit in the International System of Units is the pascal second (Pa•s):
5. 1 Pa•s = 1 kg•m−1•s−1 = 10 P
6. The poise is often used with the metric prefix centi-. A centipoise is one one-hundredth of a poise, and one millipascal-second (mPa•s) in SI units. (1 cP = 10−2P = 10−3 Pa•s) Centipoise is properly abbreviated cP, but the alternative abbreviations cps, cp, and cPs are also commonly seen.
7. Water has a viscosity of 0.0091 poise at 25 °C, or 1 centipoise at 20 °C.

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