| NL | neural lobe; neutral lipid; nodular lymphoma; normal; normal libido, normal limits |
|---|---|
| NS | natural science; Neosporin; nephrosclerosis; nephrotic syndrome; nervous system; neurological surger... |
| NAD | neutrophil actin dysfunction; new antigenic determinant; nicotinamide adenine dinucleotide; nicotini... |
| AN | acanthosis nigricans; acne neonatorum; acoustic neuroma; adult, normal; ala nasi; amyl nitrate; aneu... |
| NBM | no bowel movement; normal bone marrow; normal bowel movement; nothing by mouth |