KNOWPIA
WELCOME TO KNOWPIA
Prout (unit) 
Summary
The Prout is an obsolete unit of energy, whose value is:
This is equal to one twelfth of the binding energy of the deuteron.
History edit
The "Prout" is a unit of nuclear binding energy, and is 1/12 the binding energy of the deuteron, or 185.5 keV. It is named after William Prout. "Proutons" was an early candidate for the name of what are now called protons.