| Acronym | Meaning |
| GNP | Gross National Product |
| AIR CHIEF | Air ClearingHouse For Inventories And Emission Factorspar |
| MCTDHF | Multiconfiguration Time-dependent Hartree-Fock |
| SATRAS | Satellite Transition Spectroscopy |
| QUPID | Quantum Path Integral (mol.) Dynamics (method In Mol. Calcns.) |
| SIR-C | Spaceborne Imaging Radar-C |
| AAI | American Association Of Immunologists |
| PDGFR | Platelet-derived Growth Factor Receptor |
| PAM | Performance Assessment Methodology |
| CTD | Charge Transfer Device (optical Spectroscopic Detector) |