| Acronym | Meaning |
| FTD | Flame Thermionic Detector (gas Chromatography) |
| PREP | Plasma Rotating Electrode Process |
| PHE | Potentially Harmful Element |
| DOQSY | Double-quantum Spectroscopy |
| PA/SI | Preliminary Assessment/Site Inspection |
| DOR | Delta Opioid Receptor |
| FRTP | Fiber-reinforced Thermoplastic |
| RCM | Radiative Convective Model (of Climate) |
| OCTG | Oil Country Tubular Goods |
| UTI | Urinary Tract Infection |