| Acronym | Meaning |
| PDS | Piecewise Direct Standardization |
| MCNP | General Monte Carlo Code For Neutron And Photon Transport |
| AESOP | Airborne Experiment To Study Ozone Production |
| EDC | Ethylene Dichloride |
| GWD | Gaussian Wave Packet Dynamics |
| PCOP | Positron Correlation Polarization (potential) |
| FEMO | Free-electron Molecular Orbital |
| BCCP | Biotin Carboxyl-carrier Protein |
| ECMRA | European Chemical Market Research Association |
| BD | Brueckner (orbitals With) Double (substitution) (in Electron Correlation) |