| Acronym | Meaning |
| GSO | General Spin Orbital |
| MDQ | Minimum Detectable Quantity |
| MIKE | Mass-analyzed Ion Kinetic Energy (spectrometry) |
| AVO | Average Virtual Orbital |
| MICE | Methods Information Communications Exchange |
| EOTC | European Organization For Testing And Certification |
| ICPD | Inductively Coupled Plasma Deposition |
| BOC | Bond-order Conservation (model In Calcns. On Reactions) |
| NDLM | Nondiagonal Lagrange Multiplier |
| MARIS | Mississippi Automated Resource Information System |