Definition: A pint per second (pnt/s) is a unit of volumetric flow rate that measures the volume of a fluid passing through a surface per unit of time. It represents the amount of fluid volume, measured in pints, that flows every second.

History/origin: The 'pint' is a unit of volume in both the imperial and United States customary systems of measurement. Its historical origins can be traced back to traditional systems of liquid measurement. The 'per second' component indicates a rate of change over time.

Current use: Pints per second is generally used in situations where relatively large volumes are being transferred quickly. This could be found in industrial pumping systems or rapid filling processes.