| Acronym | Meaning |
| HPHF | Half-projected Hartree-Fock Model |
| NLGI | National Lubricating Grease Institute |
| ROM | Reverse Osmosis Membrane |
| SU | Standard Unit |
| MORTI | Mesopause Oxygen Rotational Temp. Imager |
| COS | Cosmic Origins Spectrograph |
| SOHO | Solar And Heliosphere Observatory |
| CEFIC | European Chemical Industry Association |
| ASM | Autosampler Module |
| CMI | Corrective Measures Implementation |