| Acronym | Meaning |
| COF | Coefficient Of Friction |
| WLN | Washington Library Network |
| SLE | Solid-liquid Equilibria |
| ARSCF | Approximate Relativistic SCF |
| MFS | Major Facilitator Superfamily |
| NMIJ | National Metrology Institute Of Japan |
| AIGER | American Industry Government Emissions Research Consortium |
| MTJ | Magnetic Tunnel Junction |
| MTCT | Mother-to-child Transmission |
| SSTI | Small System Technol. Initiative (USEPA) |