1. 
   Pentalpha
   Pen·tal'pha noun [ New Latin , from Greek ...: confer French pentalpha . See Penta- , and Alpha .] A five-pointed star, resembling five alphas joined at their bases; -- used as a symbol.
   Found op http://www.encyclo.co.uk/webster/P/48
   
   
2. 
   Pentalpha
   • (n.) A five-pointed star, resembling five alphas joined at their bases; -- used as a symbol.
   Found op http://thinkexist.com/dictionary/meaning/pentalpha/
   
   
3. 
   Pentalpha
   Pentalpha is a puzzle where the goal is to place nine stones on the ten intersections of a pentagram. The following rules need to be obeyed when placing the stones: ==Solution== The solution to Pentalpha can be found for any starting point using the following algorithm: ...
   Found op http://en.wikipedia.org/wiki/Pentalpha
   
   

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