Library /sys$common/syshlp/sca$menu.hlb Terms, Node  *Conan The Librarian (sorry for the slow response - running on an old VAX)

  The graphical representation of a symbol in a call
  graph, class browser result or a type tree.  For example,
  a routine is node in  a call graph; depicted by a circle
  along with the name of the routine.  See also arc.