| Acronym | Meaning |
| LD | Limits Of Detection |
| BSSEC | Basis-set Superposition Error Correction |
| CROSSBOW | Computerized Retrieval Of Organic Structures Based On Wiswesser |
| EFV | Electric-field-variant Function (in CI Method) |
| RKB | Restricted Kinetic Balance (method In Calcns. Of Wave Functions And Energies) |
| EAAS | Electrothermal Atomic Absorption Spectrometry |
| MRD-CI | Multireference Double-excitation Configuration Interaction |
| ABS | Arc Bond Sputter |
| ICD | Implantable Cardioverter Defibrillator |
| NEO | Near-Earth Objects |