| Acronym | Meaning |
| IOC | Inorganic Chemical |
| ICD | Implantable Cardioverter Defibrillator |
| DTR | Diffusion Transfer Reversal |
| PBB | Polybrominated Biphenyl |
| SOS | Surfaces Of Section Method (semiclassical Calcn. Of Eigenvalues) |
| ITFM | Intergovernmental Task Force On Monitoring |
| WFPC2 | Wide Field Planetary Camera 2 |
| BHF | Broken-symmetry Hartree-Fock |
| UW-PG | Uniformly Weighted Planar Grid (method In Calcns. Of Electron-momentum Distributions) |
| LFS | Li-Fraumeni Syndrome |