| NPO | nothing by mouth [Lat. nulla per os]; nucleus preopticus |
|---|---|
| DCN | data collection network; deep cerebral nucleus; delayed conditioned necrosis; depressed, cognitively... |
| NLT | normal lymphocyte transfer; not less than; nucleus lateralis tuberis |
| NRL | nucleus reticularis lateralis |
| E-W nucleus | Edinger-Westphal nucleus |