| Acronym | Meaning |
| GVB-PP | Generalized Valence Bond-perfect Pairing (wave Function) |
| WRAC | Waste Reduction Audit Checklist (component Of WRAS) |
| GGA | Generalized Gradient Approxn. |
| CPSS | Coulomb-repulsion Perturbed Stationary State |
| PETP | Poly(ethylene Terephthalate) |
| GPMS | Galileo Probe Mass Spectrometer |
| SO SCF | Spin-optimized Self-consistent Field |
| ACBM | Advanced Cement-Based Materials |
| COBE | Cosmic Background Explorer Satellite (NASA) |
| CERDIP | Ceramic Dual-inline Package |