| Acronym | Meaning |
| MFS | Major Facilitator Superfamily |
| MOZAIC | Measurement Of Ozone And Water Vapor By Airbus In-Service Aircraft |
| ROMP | Restricted Open-shell Moeller-Plesse |
| RAIN | Reactions And Intermediates Network |
| BBP | Benzyl Butyl Phthalate |
| STAIRS | Storage And Information Retrieval System |
| ERG | Emergency Response Guidebook |
| VIF | Valency-point Interaction Formula (in Graph Theory With At. And Mol. Orbitals) |
| BWO | Backward Wave Oscillator |
| MR-MP | Multireference Moeller-Plesset (perturbation Theory) |