1. 
   NOx-N
   acronym: Nitrogen oxides nitrogen trace gas emission ratio
   Found op http://cdiac.ornl.gov/pns/acronyms.html#N
   
   
2. 
   noxen
   1) Township in wyoming county pennsylvania, usa
   Found op http://www.mijnwoordenboek.nl/EN/crossword-dictionary/noxen/1
   
   
3. 
   noxiustoxin
   Charybdotoxin-related peptide toxin (39 residues) from scorpion Centruroides noxius . Blocks mammalian voltage-gated potassium channels and high-conductance calcium-activated potassium channels.
   Found op http://www.encyclo.co.uk/visitor-contributions.php
   
   
4. 
   noxythiolin
   <chemical> 1-(hydroxymethyl)-3-methyl-2-thiourea. Local antibacterial that probably acts by releasing formaldehyde in aqueous solutions. It is used for irrigation of infected body cavities - bladder, peritoneum, etc. And as a spray for burns. ... Pharmacological action: anti-infective agents, ...
   Found op http://www.mondofacto.com/facts/dictionary?noxythiolin
   
   
5. 
   Noxytiolin
   Noxytiolin is an anti-infective used for irrigation of the peritoneum. ...
   Found op http://en.wikipedia.org/wiki/Noxytiolin
   
   

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