1. 
   Tartness
   Tart'ness noun The quality or state of being tart. Syn. -- Acrimony; sourness; keenness; poignancy; severity; asperity; acerbity; harshness. See Acrimony .
   Found op http://www.encyclo.co.uk/webster/T/13
   
   
2. 
   tartness
   noun a sharp sour taste
   Found op http://wordnetweb.princeton.edu/perl/webwn?s=tartness
   
   
3. 
   Tartness
   • (n.) The quality or state of being tart.
   Found op http://thinkexist.com/dictionary/meaning/tartness/
   
   
4. 
   tartness
   1) Gustatory perception 2) Gustatory sensation 3) Sour 4) Sourness 5) Taste 6) Taste perception 7) Taste sensation
   Found op http://www.mijnwoordenboek.nl/EN/crossword-dictionary/tartness/1
   
   

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