| NPDL | nodular poorly differentiated lymphocytic |
|---|---|
| NRH | nodular regenerative hyperplasia |
| NS | natural science; Neosporin; nephrosclerosis; nephrotic syndrome; nervous system; neurological surger... |
| NSF | National Science Foundation; nodular subepidermal fibrosis |
| NSHD | nodular sclerosing Hodgkin disease |