| Acronym | Meaning |
| DFAA | Dissolved Free Amino Acids |
| CNDO/S | Complete Neglect Of Differential Overlap/spectroscopic |
| ORAC | Oxygen Radical Absorbance Capacity |
| POPCORN | Photo-Oxidant Formation By Plant Emitted Compds. And OH Radicals In North-Eastern Germany |
| COBE | Cosmic Background Explorer Satellite (NASA) |
| SDIO | Strategic Defense Initiative Organization |
| RFWM | Resonant Four-wave Mixing |
| NGST | Next Generation Space Telescope |
| CCC | Calibration Check Compounds |
| IAP | Intermittent Aeration Process (for Waste Treatment) |