What does PI stand for?
PI stands for Phosphate (Inorganic)
This definition appears very frequently and is found in the following Acronym Finder categories:
- Science, medicine, engineering, etc.
See other definitions of PI
We have 126 other meanings of PI in our Acronym Attic
- Perpetual Inventory
- Persistently Infected
- Personal Identifier
- Personal Injury (legal)
- Personal Inspection
- Personal Investigator (less common)
- Petroleum Institute
- Phase I (clinical studies)
- Philadelphia Inquirer (newspaper)
- Philippine Islands (slang)