Bi*sec"tion (&?;), n. [Cf. F. bissection.] Division into two parts, esp. two equal parts.
Bi*sec"tor (&?;), n. One who, or that which, bisects; esp. (Geom.) a straight line which bisects an angle.
Bi*sec"trix (&?;), n. The line bisecting the angle between the optic axes of a biaxial crystal.
Bi*seg"ment (&?;), n. [Pref. bi- + segment.] One of tow equal parts of a line, or other magnitude.
Bi*sep"tate (&?;), a. [Pref. bi- + septate.] With two partitions or septa. Gray.
{ Bi*se"ri*al (&?;), Bi*se"ri*ate (&?;), } a. [Pref. bi- + serial, seriate.] In two rows or series.
Bi*ser"rate (&?;), a. [Pref. bi- + serrate.] 1. (Bot.) Doubly serrate, or having the serratures serrate, as in some leaves.