| Abbreviation | Definition |
|---|---|
| NATN | National Association of Training Nurses |
| NATN | This term got 24 hits on 22.10.2011, on lists of abbreviations and acronyms, and is thus likely to have been retired |
| NatPaCTProgrammeXX | National Primary and Care Trust Development Programme |
| NatPaCTXX | National Primary and Care Trust Development |
| NAWCH | National Association for the Welfare of Children in Hospital |
| NB | notified body |
| NBS | newborn blood spot |
| NBTC | National Blood Transfusion Committee |
| NBTS | National Blood Transfusion Service (obsolete, now NHS Blood and Transplant) |
| NCA | National Cancer Act |
| NCA | National Council on Aging |
| NCA | National Council on Alcoholism |
| NCA | nested clade analysis |
| NCA | neurocirculatory asthenia |
| NCA | neutrophil chemotactic activity |
| NCA | nevus cell aggregate |
| NCA | non contract activity |
| NCA | noncompetitive antagonist |
| NCA | nonspecific cross-reacting antigen |
| NCA | nuclear cerebral angiogram |