| Acronym | Meaning |
| HASI | Huygens Atmospheric Structure Instrument |
| BPFT | Bohm-Pines-Fock-Tani (Hamiltonian In Calcns. On Plasmons) |
| MDI | Methylene Di-p-phenylene Isocyanate |
| CARBASHD | Carbon-relayed Band-selected Homonuclear-decoupled |
| TCA | Turbulent Contact Absorber |
| SDQ-MBPT | Single (and) Double (and) Quadruple (substituted States) Many-body Perturbation Theory |
| PUMP | Pure (alpha-spin-state) Unrestricted Moeller-Plesset Nth-order (wave Function) |
| APT | Attached Proton Test |
| ISE | Iterative Secular Equation (method For Solving The Schroedinger Equation) |
| LCP | Local Complex Potential (in Electron-atom Scattering) |