| Acronym | Meaning |
| PANH | Polycyclic Aromatic Nitrogen Heterocycle |
| RAF | Reactivity Adjustment Factor |
| ATDC | After Top Dead Center (gasoline And Diesel Engine Timing) |
| CCA | Canonical Correspondence Analysis |
| COF | Coefficient Of Friction |
| RH | Relative Humidity |
| LIGS | Laser-induced Grating Spectroscopy |
| SAMPE | Society For The Advancement Of Material And Process Engineering |
| AMPK | AMP-activated Protein Kinase |
| POSAP | Position-sensitive Atom Probe |