| Acronym | Meaning |
| DIU | Data Information Unit (of WOCE Data System) |
| EVB | Effective Valence Bond (hamiltonian) |
| FPGS | Folylpolyglutamate Synthetasepar |
| HAO | Hydrogenic Atomic Orbital |
| PM | Particulate Matter |
| PSA | Prostate-specific Antigen |
| CAMD | Computer-aided Molecular Design |
| APMI | American Powder Metallurgy Institute |
| APLG | Antisymmetrized Product Of Localized Geminals (wave Function) |
| CILS | Core Ionization Loss Spectroscopy |