| Acronym | Meaning |
| FFV | Flexible Fuel Vehicle |
| RIDIRS | Resonant In-dip IR Spectroscopy |
| EPXMA | Electron Probe X-ray Microanalysis |
| NKA | (Na2O + K2O)/Al2O3 |
| PFS | Planetary Fourier Spectrometry |
| PFDT | Partial Flow Dilution Tunnel |
| NLM | National Library Of Medicine |
| ATL | Adult T-cell Leukemia |
| SPLITT | Split-flow Thin [fractionation] |
| PFI | Port Fuel Injection |