NPV
# NPV

NPV may refer to:

In economics:

In politics:

In medicine and science:

* Negative predictive value, in biostatistics, the proportion of patients with negative test results who are correctly diagnosed
* Nuclear Polyhedrosis Virus, a virus that infects butterflies and moths
* Negative Phase Velocity, an electromagnetic property induced by some exotic optical materials
* Negative pressure ventilator, a type of mechanical ventilator that stimulates an ill person's breathing by periodically applying negative air pressure to their body to expand and contract the chest cavity.

Other uses:

