| Acronym | Meaning |
| IAETL | International Association Of Environmental Testing Laboratories |
| DIDMOAD | Diabetes Insipidus |
| TDI | Toluene Diisocyanate [mixt. Of Isomers] |
| VCCPB | Variable-charge Coulomb-projected Born (approxn. For Electron-atom Scattering) |
| AIST | Agency Of Industrial Science And Technology (Japan) |
| OCAMS | Orbital Correspondence Analysis In Maximum Symmetry |
| BAL | Bronchoalveolar Lavage |
| UASBR | Upflow Anaerobic Sludge Blanket Reactor |
| BWPT | Brillouin-Wigner Perturbation Theory |
| AMSU | Advanced Microwave Sounding Unit |