1. 
   nonagon
   [n] - a nine-sided polygon
   Found op http://www.webdictionary.co.uk/definition.php?query=nonagon
   
   
2. 
   Nonagon
   A nine sided polygon. Each internal angle is 140° and the sum of the internal angles is 1260°. See also: Polygon.
   Found op http://www.diracdelta.co.uk/science/source/n/o/nonagon/source.html
   
   
3. 
   Nonagon
   Non'a·gon noun [ Latin nonus ninth + Greek ... angle.] (Math.) A figure or polygon having nine sides and nine angles.
   Found op http://www.encyclo.co.uk/webster/N/29
   
   
4. 
   nonagon
   <mathematics> A figure or polygon having nine sides and nine angles. ... Origin: L. Nonus ninth + Gr. Angle. ... Source: Websters Dictionary ... (01 Mar 1998) ...
   Found op http://www.mondofacto.com/facts/dictionary?nonagon
   
   
5. 
   nonagon
   noun a nine-sided polygon
   Found op http://wordnetweb.princeton.edu/perl/webwn?s=nonagon
   
   
6. 
   Nonagon
   • (n.) A figure or polygon having nine sides and nine angles. • (n.) A figure or polygon having nine sides and nine angles.
   Found op http://thinkexist.com/dictionary/meaning/nonagon/
   
   
7. 
   nonagon
   nonagon, nonagonal; enneagon A polygon having nine angles and nine sides.
   Found op http://www.wordinfo.info/words/index/info/view_unit/1409/
   
   
8. 
   Nonagon
   In geometry, a nonagon n (or enneagon n) is a nine-sided polygon. The name "nonagon" is a prefix hybrid formation, from Latin (nonus, "ninth" + gonon), used equivalently, attested already in the 16th century in French nonogone and in English from the 17th century. The name "enneagon" comes from Gre...
   Found op http://en.wikipedia.org/wiki/Nonagon
   
   
9. 
   nonagon
   A polygon with 9 sides. A nonagonal number is a number of the form n(7n - 5)/2.
   Found op http://www.daviddarling.info/encyclopedia/N/nonagon.html
   
   
10. 
    Nonagon
    A nonagon (or enneagon) is a nine-sided polygon.
    Found op http://www.probertencyclopaedia.com/browse/GN.HTM
    
    
11. 
    nonagon
    1) A nine-sided polygon 2) Defective stop sign? 3) Its internal angles total 1,260 degrees 4) Nine sided polygon 5) Nine-sided figure 6) Odd-shaped figure 7) Polygon 8) Polygonal shape 9) Shape with one more side than a stop sign
    Found op http://www.mijnwoordenboek.nl/EN/crossword-dictionary/nonagon/1
    
    

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