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二等分線 (にとうぶんせん) Japanese meaning | Kotomora

二に等とう分ぶん線せん

に

と

う

ぶ

ん

せ

ん

Meanings

1

noun

bisector

A geometric term for a line that divides an angle or segment into two equal parts. Used in mathematics contexts.

角かくの二に等とう分ぶん線せんを引ひいてください。
Please draw the angle bisector.
二に等とう分ぶん線せんは、線せん分ぶんを二に等とう分ぶんする直ちょく線せん

です

。

A bisector is a line that divides a segment into two equal parts.

Written forms

二に等とう分ぶん線せん
Standard kanji spelling for the geometric term 'bisector'.
２に等とう分ぶん線せん
Variant spelling using the numeral 2; less common but still encountered.

Kanji

二two, two radical (no. 7)
等etc., and so forth, class (first)
分part, minute of time, segment
線line, track

Similar words

垂すい直ちょく二に等とう分ぶん線せん
Specifically a perpendicular bisector, whereas 二等分線 can refer to any bisector (angle or segment).
角かくの二に等とう分ぶん線せん
Explicitly an angle bisector; 二等分線 alone is broader and can also refer to a segment bisector.

Etymology

Compound of 二等分 (に等分, 'dividing into two equal parts') + 線 (せん, 'line'). The term is a straightforward mathematical coinage.