| Acronym | Meaning |
| NDO | Neglect Of Differential Overlap |
| TCM | Total Capacitance Method |
| DPC | Differential Phase Contrast |
| NASDA | National Space Development Agency Of Japan |
| PPT-MCF | Pseudo-polarization Tensor-mutually Consistent Field ( For Mol. Interactions) |
| ACF | Activated Coke Fines |
| CNC | Condensation Nucleus Counter |
| IPDI | Isophorone Diisocyanate |
| RAP | Receptor-associated Protein |
| CSIA | Compd.-specific Isotope Anal. |