| Acronym | Meaning |
| CPA | Coupled-pair Approximation |
| ICC | Ignition Control Compound |
| NND | New And Nonofficial Drugs |
| LAOCOON | Least-squares Adjustment Of Calculated On Observed NMR Spectra |
| WELAC | Western European Laboratory Accreditation Cooperation |
| CARTS | Critical Actions Requirements Tracking System |
| TFA | Trifluoroacetic Acid |
| IAETL | International Association Of Environmental Testing Laboratories |
| ABC | Absorbing Boundary Condition (green Function) |
| PO-TDSE | Periodic Orbit-time Dependent Schroedinger Equation |