| Acronym | Meaning |
| FP-LMTO | Full-potential Linear Combination Of Muffin-tin Orbitals |
| MOR | Mid-ocean Ridge |
| ISC-PEM-MO | Iterative Self-consistent Partition Of Energy Method And MO Formalism |
| KAM | Kolmogorov-Arnold-Moser (theorem In Quantum Stochasticity) |
| PS1 | Presenilin 1 |
| BAAQMD | Bay Area Air Quality Management District |
| IABO | International Association Of Biological Oceanography (ICSU) |
| IX | Ion Exchange |
| CHA | Concentric Hemispherical Analyzer |
| MCHF | Multiconfiguration Hartree-Fock |