| Acronym | Meaning |
| APHIS | Animal And Plant Health Inspection Service |
| FFPE | Formalin-fixed Paraffin-embedded |
| HETG | High-energy Transmission Grating |
| BID | Background Information Document |
| NBR | Nitrile-butadiene Rubber |
| CP | Chemically Pure |
| SCANIIR | Surface Composition Analysis By Neutral And Ion Impact Radiation |
| QFDFT | Quantum-fluid Density-functional Theory |
| CCA | Close-coupling Approximation |
| MRNA | Messenger Ribonucleic Acid |