circumcenter.
http://wiki.answers.com/Q/What_is_the_name_of_the_...

The point where the three perpendicular bisectors of a triangle meet is call Circumcenter of a triangle or Circumcircle.
http://www.kgbanswers.com/whatisthepointofint...

The intersection of the perpendicular bisectors of a triangle is th...
http://www.chacha.com/question/whatistheinterse...

Fun question! In general, perpendicular bisectors interesect at the CIRCUMCENTER. The perpendicular bisector of AB gives all the points equidistant to A and B. Likewise, the perpendicular
http://answers.yahoo.com/question/index?qid=201106...
