1. to divide something into two equal parts
Usage: mathematics; geometry
2. to cut or divide something into two parts

Examples

• The line bisects the circle into two equal halves.
• Draw a line to bisect the angle.
• The highway bisects the town from north to south.
• She used a ruler to bisect the rectangle perfectly.
• The river bisects the valley into eastern and western sections.
• In geometry class, we learned how to bisect various shapes.