| Acronym | Meaning |
| USDI | US Department Of Interior |
| EFTA | European Free Trade Association |
| HDT | Heat Distortion Temperature |
| GVHD | Graft Versus Host Disease |
| VGAO | Variable Gage Atomic Orbital |
| GLT | Geochemical Logging Tool |
| EDCS | Energy Distribution Curve Spectroscopy |
| NDF | Neutral Detergent Fiber |
| IGC | International Geological Congress |
| BCC | Body Centered Cubic |