| N&M | nerves and muslces; night and morning |
|---|---|
| nm | nanometer; night and morning [Lat. nocte et mane] |
| noc, noct | at night [Lat. nocte] |
| NSCS | night shift call system |
| NSD | Nairobi sheep disease; neonatal staphylococcal disease; neurosecretory dysfunction; night sleep depr... |