| NACHRI | National Association of Children's Hospitals and Related Institutions |
|---|---|
| NACOR | National Advisory Committee on Radiation |
| Nacq | number of acquisitions |
| NACSAP | National Alliance Concerned with School-Age Parents |
| NACT | National Alliance of Cardiovascular Technologists |
| NAD | Nicotinamide Adenine Dinucleotide |
| NAD | neutrophil actin dysfunction; new antigenic determinant; nicotinamide adenine dinucleotide; nicotinic acid dehydrogenase; no abnormal discovery; no active disease; no acute distress; no apparent distress; no appreciable disease; normal axis deviation; not done; nothing abnormal detected |
| NaD | sodium dialysate |
| NAD+ | the oxidized form of NAD |
| NADA | New Animal Drug Application |