| NSE | neuron-specific enolase; nonspecific esterase; normal saline enema |
|---|---|
| NSM | neurosecretory material; neurosecretory motor neuron; nonantigenic specific mediator; nutrient sporu... |
| NSP | neuron specific protein; nonstructural protein |
| OS | left eye [Lat. oculus sinister]; occipitosacral; occupational safety; office surgery; Omenn syndrome... |
| PASP | pancreas-specific protein; pulmonary artery systolic pressure |