| Acronym | Meaning |
| ICM | Institute For Crisis Management |
| PTP | Protein Tyrosine Phosphatase |
| HRXPS | High Resolution X-ray Photoelectron Spectroscopy |
| MES | 2-(N-morpholino)ethanesulfonic Acid |
| ICAPES | Inductively Coupled Argon Plasma Emission Spectrometry |
| RCIS | Resource Center Information System |
| A/CNK | [Al2O3/(CaO + Na2O + K2O)] (Shand's Index) |
| MS X(ALPHA) | Multiple-scattering X(alpha) Exchange Method |
| ACCAD | Advisory Committee On Climate Applications And Data |
| APL | Alternative Pollutant Limits |