| Acronym | Meaning |
| GIS | Gas Insulated Switchgear |
| VBR | Variational Basis Representation (in Quantum Calcns.) |
| BLR | Broad Line Region |
| LDPE | Low Density Polyethylene |
| LOI | Limiting Oxygen Index [of Fire Retardant] |
| RXF | Refracted X-ray Fluorescence |
| WILT | Waste Interface Leaching Test |
| MGMT | O6-methylguanine-DNA Methyltransferase |
| CALCOFI | California Cooperative Oceanic Fisheries Investigations |
| BTB | Bromothymol Blue |