| Acronym | Meaning |
| CNPGAA | Cold Neutron Prompt Gamma-ray Activation Analysis |
| NMHC | Nonmethane Hydrocarbons |
| ICAO | International Civil Aviation Organization |
| EOPP | Earth Observation Preparatory Program |
| AIDS | Acquired Immune Deficiency Syndrome |
| IILE | Ion-induced Light Emission |
| PRDA | Program Research And Development Announcement |
| CNDO SP | Complete Neglect Of Differential Overlap Spin Polarization |
| 2PH TDA | Two-particle-hole Tamm-Dancoff Approximation (for Closed-shell |
| ISAS | Japanese Institute Of Space And Astronomical Science |