| Acronym | Meaning |
| NMAM | NIOSH Manual Of Analytical Methods |
| NMRI | Nuclear Magnetic Resonance Imaging |
| IP | Impact Parameter Approximation |
| SHEED | Scanning High-energy Electron Diffraction |
| QRM | Quadratic Rubinow Method (variational Method For Scattering) |
| DDRP | Direct Delayed Response Program (for Long Term Effects Of Acid Rain) |
| EST | Eastern Standard Time |
| MP4(SDTQ) | Moeller-Plesset (perturbation Theory To) 4th Order With Single |
| MO | Molecular Orbital |
| RUP | Restricted Use Pesticide |