| Acronym | Meaning |
| CIOS | Complex Infinite Order Sudden (approxn. In Quantum Calcns.) |
| ATM | Analytic Tetrahedron Method (for Brillouin-zone Integrals And Electron Spin Densities) |
| BDA | Biotinylated Dextran Amine |
| MCMP | Modified Corrugated Morse Potential |
| IASH | International Association On The Stability And Handling Of Liquid Fuels |
| IFOT | Invariant Fock Operator Technique |
| WELAC | Western European Laboratory Accreditation Cooperation |
| CDEDW | Centrifugally-decoupled Exponential Distorted Wave |
| SR-CCD | Single Reference-CCD |
| ASPERA | Analyzer Of Space Plasma And Energetic Atoms (Mars Express Spacecraft) |