| Acronym | Meaning |
| ATG | Antithymocyte Globulin |
| DIB | Dibutyl Chlorendate |
| ACAMS | Automatic Continuous Air Monitoring System |
| QCA | Quasichemical Approxn. (in Calcns. On Semiconductors) |
| HKS | Hohenberg-Kohn-Sham (quantum Theory) |
| CARE | Computed-aided Risk Evaluation |
| HECD | Hot Electron Capture Dissociation |
| FARCE | Freezing At Reactive Centers Of Enzymes |
| THFFF | Thermal Field-flow Fractionation |
| NELAC | National Environmental Laboratory Accreditation Conference |