| Acronym | Definition |
|---|
| nPNA➣Normalized Protein Nitrogen Appearance (nutrition) |
| nPNA➣Nexon Publishing North America |
| nPNA➣Normal Park Neighborhood Association (Ypsilanti, MI) |
| nPNA➣Non-Protein Nitrogen Appearance |
| nPNA➣Normalized Protein N Appearance (biochemistry) |
| nPNA➣N-Phenyl-1-Naphthylamine |