PPN
From Wikipedia, the free encyclopedia
PPN may refer to:
- Guillermo León Valencia Airport
- Pre-Pottery Neolithic
- Nigerien Progressive Party-African Democratic Rally, from the French acronym, Parti Progressiste Nigérien
- Pandit Pran Nath
- Parameterized post-Newtonian formalism
- Pingat Pangkuan Negara, a Malaysian honour
- Pedunculopontine nucleus
- Principal protected notes, an investment product
- Protoplanetary nebula
[edit] See also
- Bis(triphenylphosphine)iminium chloride (PPNCl), a source of PPN+ cation
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