is the unit of absolute, or dynamic, viscosity in the centimeter-gram-second system of units. The abbreviation for poise is typically symbolized by P.  The poise is the most commonly encountered unit of viscosity, often as the centipoise.

Viscosity is the property of a liquid that resists flowing, sort of internal friction.  Molasses, for example, has a higher viscosity than water. One poise is the viscosity of a fluid that requires a shearing force of 1 dyne to move a square centimeter area of either of two parallel layers of fluid 1 centimeter apart with a velocity of 1 centimeter per second relative to the other layer, the space between the layers being filled with the fluid.

One poise = 0.1 pascal-second = 0.1 poiseuille.