| Acronym | Meaning |
| OTTLE | Optically Transparent Thin-layer Electrode |
| CBEDP | Convergent-beam Electron-diffraction Pattern |
| CMBR | Cosmic Microwave Background Radiation |
| SRR | Standardized Relative Risk |
| RPC | Reduced Potential Curve (method For Anal. Of Potential Functions And Spectra Of Diatomic Molecules) |
| STS | Slater Transition State (for Calcg. Electronic Transitions Of Atoms And Molecules) |
| MSH | Melanocyte-stimulating Hormone |
| QAMB | Quality Assurance Materials Bank (USEPA) |
| ISEELS | Inner-shell Electron Energy Loss Spectroscopy |
| CAES | Compressed Air Energy Storage |