Ppn definitions

PPN

Is the Private Placement Number.
Found on http://www.oasismanagement.com/glossary/

---

PPN

Proto-Planetary Nebula, an object that has partially evolved from a red giant to a planetary nebula
Found on http://www.translationdirectory.com/glossaries/glossary142.htm

---

PPN

Partial parenteral nutrition
Found on https://www.encyclo.co.uk/local/22446

---