| Acronym | Meaning |
| ARF | ADP-ribosidation Factor |
| MRS | Minimum Required Strength |
| SNUR | Significant New Use Rule |
| PNA | Paraffins, Naphthenes, And Aromatics (in Petroleum Analysis) |
| ITDHO | Improved Time-dependent Harmonic Oscillator |
| CTC | Charge-transfer Complex |
| SHAPE | Simulation Of Human Activity And Pollution Exposure |
| PVOH | Polyvinyl Alcohol |
| PAMSA | PCR Amplification Of Multiple Specific Alleles |
| IMS | Intelligent Manufacturing Systems |