| Acronym | Meaning |
| IAP | Immunosuppressive Acidic Protein |
| MHA | Mott-Hubbard-Anderson (model In Band-structure Calcns.) |
| RRGM | Recursive Residue Generation Method |
| MCC | Modified Continuous Cooking [of Pulp] |
| VCS | Voluntary Cleanup Section |
| XMCD | X-ray Magnetic Circular Dichroism |
| EO | Ethylene Oxide |
| NLMO | Nonorthogonal Localized Molecular Orbital |
| ECT | Ergodic Collision Theory |
| ESID | Environmental Statistics And Information Division |