| Acronym | Meaning |
| IAMAP | International Association Of Meteorology And Atmospheric Physics (ICSU) |
| PCMT | Protein Carboxyl Methyltransferase |
| MAP | Microtubule-associated Protein |
| OWEC | Office Of Wastewater Enforcement And Compliance |
| APAF | Apoptosis Protease Activating Factor |
| PFRP | Process To Further Reduce Pathogens |
| UPA | Unitary-pole Approximation |
| PEGC | Phonon Glass Electron Crystal |
| LITJ | Laser-Induced Temperature Jump |
| DBPR | Microbiological And Disinfection Byproducts Regulations |