The full form of pH is Power/Potential of Hydrogen. It’s used on Academic & Science ,Chemistry in Worldwide

pH is a logarithmic measure of the concentration of hydrogen ions or protons (H+), in a solution. pH value varies in the range of 1 to 14. The pH value of pure water is 7.

Note:

The H in pH relates to the Hydrogen ion concentration but the orgin of the p is disputed. pH could mean “Power of Hydrogen” or “Potential of Hydrogen”. It has also been suggested that the “p” stands for:

In German, potenz, meaning “power”.

In French, pouvoir, meaning “power”

In French, puissance, meaning “power”

In Latin, potentia, meaning “power”