| Acronym | Meaning |
| IRR | Internal Rate Of Return |
| WSD | Wear Scar Diameter |
| GOCO | Government-owned |
| LIGO | Laser-interferometer Gravitational-wave Observatory |
| CEIS | Center For Environmental Information And Statistics (EPA) |
| OPIA | Optical Precision Instrument Associates |
| FO-CPHF | First-order Coupled Perturbed Hartree-Fock Theory |
| WILT | Waste Interface Leaching Test |
| CAMEO | Computer Assisted Mechanistic Evaluation Of Organic Reactions |
| IMXA | Ion Microprobe X-ray Analysis |