NWSM
| Acronym | Definition |
|---|---|
| NWSM | Nocardia Water Soluble Mitogen |
| NWSM | Nederlandsch Westfaalsche Stoomtram Maatschappij (Dutch: Dutch Westphalian Tramway Company) |
| NWSM | Nuclear Weapons Stockpile Memorandum |
| NWSM | National Weather Service Modernization (US NOAA) |
| NWSM | Nocardia Opaca Water Soluble Molecules |