| Acronym | Meaning |
| DSC | Differential Scanning Calorimetry |
| CICIS | Chemicals In Commerce Information System |
| IVAP | Intimate Valence Alternation Pairs (bonding Model In Electronic Structure Calcns.) |
| CMF | Completely Mixed Flow |
| WET | Whole Effluent Toxicity |
| DTL | Drift Tube Linac |
| ERDA | Elastic Recoil Detection Analysis |
| ODSC | Oscillating Differential Scanning Calorimetry |
| OSIRIS | Oxford Supersensitive Injector For Radioactive Isotope Separation |
| NTU | Number Of Transfer Units (in Packed Tower Aeration System) |