bisector

IPA/baɪˈsek.tər/
IPA/baɪˈsek.tɚ/

bisector — noun

  • bisectorsingular
  • bisectorsplural

1. a straight line used to cut any angle, line segment, or shape into two halves of

1.名詞B2
釋義

a straight line used to cut any angle, line segment, or shape into two halves of equal size

例句

The angle bisector splits a given angle into two equal smaller angles.

collocation: angle bisector

Draw the perpendicular bisector of line segment AB using a ruler and compass.

collocation: perpendicular bisector

同義詞
  • midline

    less precise; sometimes used informally for a line through a midpoint, but not a standard geometry term for angle division

用法筆記

Primarily used in geometry. The noun is almost always preceded by a modifier such as 'angle', 'perpendicular', or 'segment'. The plural form 'bisectors' is common when discussing multiple lines in one figure.

常見錯誤

❌Draw a bisect of the angle.
✅Draw a bisector of the angle.
💡'Bisect' is a verb, not a noun; the noun form is 'bisector'.
❌The bisector line cuts the angle in half.
✅The bisector cuts the angle in half.
💡'Bisector' already means a line; adding 'line' is redundant.