| Acronym | Meaning |
| BNFL | British Nuclear Fuels Laboratory |
| PT2D | Second-order Perturbation Theory (with) Diagonal (part Of Fock Matrix) |
| EFVAO | Electric-field Variant Atomic Orbital |
| SWORD | Surveillance Of Work Related And Occupational Respiratory Disease |
| IPAA | Instrumental Photon Activation Analysis |
| USTR | US Transuranium Registry |
| MARB | Methanotropic Air-tight Rotating Bioreactor |
| TSCW | Torsional Spin Current Wave (type Of Hartree-Fock Wave Function) |
| CHP | Chemical Hygiene Plan |
| MIRS | Multiple Internal Reflection Spectroscopy |