1. 
   PNA
   Programmable Network Access
   Found op http://www.encyclo.co.uk/visitor-contributions.php
   
   
2. 
   PNA
   Pennsylvania Nurses Association
   Found op http://www.encyclo.co.uk/local/20895
   
   
3. 
   PNA
   PNA or Pna has a variety of meanings: ==Science and Engineering== ==Organizations== ==Computing== ==Health== ==Other== ...
   Found op http://en.wikipedia.org/wiki/PNA
   
   
4. 
   PNA
   Any of numerous complex hydrocarbon compounds consisting of three or more benzene rings in a compact molecular arrangement. Some types of PNA`s are formed in fossil fuel combustion and other heat processes, such as catalytic cracking.
   Found op http://www.noria.com/dictionary/default.html?definitionsearch=xqxqxqxq222&a
   
   
5. 
   PNA
   A substance that contains the same bases as those found in biological nucleic acids but whose backbone is held together by amide bonds. PNAs are currently of interest in discussions about the chemical precursors of DNA and RNA.^{1, 2} PNAs form double-stranded complexes that clos...
   Found op http://www.daviddarling.info/encyclopedia/P/PNA.html
   
   
6. 
   PNA
   Performance Needs Analysis
   Found op http://www.met.police.uk/foi/glossary.htm
   
   
7. 
   pna
   1) Programmable network access
   Found op http://www.mijnwoordenboek.nl/EN/crossword-dictionary/pna/1
   
   

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