| Acronym | Meaning |
| MR-SAC | Multireference Symmetry-adapted-cluster (quantum Theory Or Wave Function For Mol. Calcns.) |
| IVM | In Vitro Maturation |
| MIDI-N | Split-type Contracted GTO Basis Set (n = 1 |
| RLPPS | Reactive Low-pressure Plasma Spraying |
| AQS | Air Quality Standard |
| CSA | Coupled-subshell Approxn. (in Calcns. On Inner-shell Ionization Collisions) |
| DCC | Dextran-coated Charcoalpar |
| QTOF | Quadrupole Time-of-flight |
| TIP | Total Isomerization Process |
| PBL | Planet Boundary Layer (in Atmospheric Chemistry And Physics) |