B3I1S1E1C3T1R1I1X8
20 points
BISECTRIX is validvalid
a bisecting line [n BISECTRICES]
the bisector of the angle between the optic axes of a crystal [n BISECTRICES]
a bisecting line [n BISECTRICES]
the bisector of the angle between the optic axes of a crystal [n BISECTRICES]