| Acronym | Meaning |
| HSC | Health And Safety Commission (UK) |
| HTML | Hypertext Markup Language |
| ITFM | Intergovernmental Task Force On Monitoring |
| AUBF | Anaerobic Upflow Biofilter |
| UOFMN | Unified Organically Functionalized Mesoporous Network |
| QDA | Quadratic Discriminant Analysis |
| OCTG | Oil Country Tubular Goods |
| NRM | Nuclear Reference Material |
| ACCD | Approximate Double Substitution Coupled Cluster Method |
| MCEB-NEV | Multiconfigurational Energy Bound-natural Eigenvalue Method |