| Acronym | Meaning |
| DCTP | Direct-current Tast Polarography |
| IRI | Industrial Research Institute |
| REA | Reactive Arthritis |
| IPA | Independent-particle Approximation (in Quantum Calcns. On Solids) |
| HDC | Histidine Decarboxylase |
| NMDR | Nuclear Magnetic Double Resonance |
| REACCS | Reaction Access System |
| ADCC | Antibody-dependent Cellular Cytotoxicity |
| CMAS | Completely Mixed Activated Sludge |
| SEVB | Semiempirical Valence Bond |