| Acronym | Meaning |
| GADD | Growth Arrest And DNA Damage |
| UGF | Unitary-group Formulation (in Many-body Quantum Theory) |
| CNDO/F | Complete Neglect Of Differential Overlap/force |
| MHW MO | Mulliken-Helmholz-Wolfsberg Molecular Orbital |
| HRMS | High Resolution Mass Spectrometry |
| PMCC | Pensky-Martens Closed Cup |
| DWA | Digital Waveform Acquisition |
| HSCR | Hirschsprung Disease |
| GOR | Gas/oil Ratio |
| NWEA | National Wood Energy Association |