| NO | Nitric oxide |
| iNO | Inhaled nitric oxide |
| ppm | Parts per million |
| SARS-CoV-2 | Severe acute respiratory syndrome coronavirus 2 |
| cGMP | Cyclic guanosine monophosphate |
| cNOS | Constitutive NO synthase |
| NOS | Nitric oxide synthase |
| eNOS/NOS3 | Endothelial NO synthase |
| nNOS/NOS1 | Neuronal NO synthase |
| iNOS/NOS2 | Inducible NO synthase |
| NADPH | Nicotinamide adenine dinucleotide phosphate |
| O2− | Superoxide |
| H2O2 | Hydrogen peroxide |
| OH− | Hydroxide |
| ONOO− | Peroxynitrite |
| ROS | Reactive oxygen species |
| RNS | Reactive nitrogen species |
| FDA | U.S Food & Drug Administration |
| SNAP | S-nitroso-L-acetylpenicillamine) |
| HSV 1 | Herpes simplex virus type 1 |
| RAW 264.7 | Monocyte/macrophage-like cells |
| H1N1 | Influenza A virus subtype H1N1 |
| H3N2 | Influenza A virus subtype H3N2 |
| MDCK | Mabin Darby canine kidney cells |
| PFU | Plaque forming units |
| CFU | Colony forming units |
| metHb | Methemoglobin |
| NO2 | Nitrogen dioxide |
| CF | Cystic fibrosis |
| NTM | Non-tuberculous mycobacterium |
| COVID-19 | Coronavirus disease 2019 |
| VT | Tidal volume |
| PEEP | Positive end-expiratory pressure |
| bpm | Beats per minute |
| FiO2 | Fraction of inspired oxygen |
| EVLP | Ex vivo lung perfusion |
| PC | Pressure control |
| MB | Methylene blue |
| IV | Intravenous |