Prout (unit)

The prout is a unit of measurement for pressure that is defined as the pressure exerted by a column of mercury that is 1 millimeter high at a temperature of 0 degrees Celsius in a gravitational field with a standard acceleration of 9.80665 m/s². It is a relatively lesser-known unit and is not commonly used in scientific contexts today, having been largely replaced by the pascal (Pa) in the International System of Units (SI).