1. 
   triradius
   In dermatoglyphics, the figure at the base of each finger in the palm, produced by rows of papillae running in three directions so as to form a triangle. ... Synonym: Galton's delta. ... (05 Mar 2000) ...
   Found op http://www.mondofacto.com/facts/dictionary?triradius
   
   
2. 
   triradius
   Type: Term Pronunciation: trī-rā′dē-ŭs Definitions: 1. In dermatoglyphics, the figure at the base of each finger in the palm, produced by rows of papillae running in three directions so as to form a triangle. Synonyms: Galton delta2
   Found op http://www.medilexicon.com/medicaldictionary.php?t=94064
   
   

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