1. 
   vigesimal
   [adj] - relating to or based on the number twenty
   Found op http://www.webdictionary.co.uk/definition.php?query=vigesimal
   
   
2. 
   Vigesimal
   Related to intervals of 20.
   Found op http://www.diracdelta.co.uk/science/source/v/i/vigesimal/source.html
   
   
3. 
   Vigesimal
   Vi·ges'i·mal adjective [ Latin vigesimus twentieth, from viginti twenty.] Twentieth; divided into, or consisting of, twenties or twenty parts. Tylor.
   Found op http://www.encyclo.co.uk/webster/V/24
   
   
4. 
   vigesimal
   adjective relating to or based on the number twenty
   Found op http://wordnetweb.princeton.edu/perl/webwn?s=vigesimal
   
   
5. 
   Vigesimal
   • (a.) Twentieth; divided into, or consisting of, twenties or twenty parts.
   Found op http://thinkexist.com/dictionary/meaning/vigesimal/
   
   
6. 
   Vigesimal
   The vigesimal or base 20 numeral system is based on twenty (in the same way in which the ordinary decimal numeral system is based on ten). == Places == In a vigesimal place system, twenty individual numerals (or digit symbols) are used, ten more than in the usual decimal system. One modern method o...
   Found op http://en.wikipedia.org/wiki/Vigesimal
   
   
7. 
   vigesimal
   Of, relating to, or based on the number 20; the term comes from the Latin vigesimus for 'twentieth.' Mayan arithmetic, which took account of all the toes as well as the fingers, used a vigesimal system. In place of the multiples of 10 used in the decimal system, 1, 10, 100, 1000, 10000, ..., the May...
   Found op http://www.daviddarling.info/encyclopedia/V/vigesimal.html
   
   
8. 
   vigesimal
   1) Large integer 2) Relating to or based on the number twenty
   Found op http://www.mijnwoordenboek.nl/EN/crossword-dictionary/vigesimal/1
   
   

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