| Acronym | Meaning |
| LADD | Lowest Acceptable Daily Dose |
| ADGIXA | Angular-dependent Glancing-incidence X-ray Analysis |
| CDC | Center For Disease Control |
| WBC | White Blood Cell |
| OEP | Odd-even (alkane/carbon) Predominance (geology) |
| GLP | Good Laboratory Practices (US FDA) |
| SPA | Self-consistent Phonon Approximation |
| OSTP | Office Of Science And Technology Policy |
| OPAL | Optical Pumping Absorption Lidar |
| UPS | UV Photoelectron Spectroscopy |