| NCPPB |
National Collection of Plant Pathogenic Bacteria |
| NCQA |
National Committee on Quality Assurance |
| NCR |
National Research Council; neutrophil chemotactic response; no carbon required; nuclear/cytoplasmic ratio |
| NCRND |
National Committee for Research in Neurological Diseases |
| NCRP |
National Council on Radiation Protection [and Measurements] |
| NCRR |
National Center for Research Resources |
| NCRV |
National Committee for Radiation Victims |
| NCS |
National Collaborative Study; neocarcinostatin; nerve conduction study; newborn calf serum; no concentrated sweets; noncircumferential stenosis; nystagmus compensation syndrome |
| NCSBN |
National Council of State Boards of Nursing |
| NCSI |
number of combined spherical irradiation |
