| Acronym | Meaning |
| VCI | Variational Configuration Interaction (quantum Calcn. Method) |
| GCE | Ground-based Cloud Experiment |
| ERAMS | Environmental Radiation Ambient Monitoring System |
| CCSOP | Close-coupling Second-order Potential (in Scattering) |
| HSDI | High-speed Direct Injection (of Diesel Engines) |
| SARA | Superfund Amendments And Reauthorization Act Of 1986 |
| ICOS | Inducible Co-stimulator |
| ETANN | Electronically Trainable Analog Neural Network |
| NLLS | Nonlinear Least Squares |
| CEDAR | Coupling, Energetics, And Dynamics Of Atm. Regions [project] |