Usually means: Parts per notation, concentration measurement.
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We found 17 dictionaries that define the word ppn:

General (5 matching dictionaries)
  1. ppn: Merriam-Webster
  2. PPN: Wiktionary
  3. PPN: Dictionary.com
  4. PPN: Wikipedia, the Free Encyclopedia
  5. PPN: Stammtisch Beau Fleuve Acronyms

Business (2 matching dictionaries)
  1. PPN: Investopedia
  2. Comprehensive Financial (No longer online)

Computing (4 matching dictionaries)
  1. PPN: Free On-line Dictionary of Computing
  2. PPN: CCI Computer
  3. I T Glossary (No longer online)
  4. PPN: Encyclopedia

Medicine (2 matching dictionaries)
  1. online medical dictionary (No longer online)
  2. PPN: Medical dictionary

Miscellaneous (2 matching dictionaries)
  1. PPN: Acronym Finder
  2. AbbreviationZ (No longer online)

Science (1 matching dictionary)
  1. PPN: A Dictionary of Quaternary Acronyms and Abbreviations

Slang (1 matching dictionary)
  1. ppn: Urban Dictionary

Definitions from Wiktionary (PPN)

noun:  (linguistics) Abbreviation of Proto-Pama-Nyungan. [(linguistics) The hypothetical common ancestor of the Pama-Nyungan languages.]
noun:  (linguistics) Abbreviation of Proto-Polynesian. [(linguistics, uncountable) The hypothetical ancestor language or protolanguage of most Polynesian languages.]
noun:  (archaeology) Abbreviation of Pre-Pottery Neolithic. [(archaeology) The early Neolithic age.]

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npn



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