bisector

English

Etymology

Etymology tree

English bisect

Proto-Indo-European *-tōr

Proto-Italic *-tōr

Latin -tor

Latin -ātor

Old French -eorbor.

Middle English -our

▲

Latin -torlbor.

English -or

English bisector

From bisect + -or.

Pronunciation

• (US) enPR: bī'sĕktər, IPA^(key): /ˈbaɪˌsɛktɚ/

• Audio (Midwestern US):

  (file)

• Rhymes: -ɛktə(ɹ)

Noun

bisector

the production of two bisegments via bisection with a perpendicular bisector

bisector (plural bisectors)

2. (geometry) A line or curve that bisects or divides a line segment, angle, or other figure into two equal parts.

   South Street is the bisector of Broken Dreams Boulevard.

Derived terms

• angle bisector
• perpendicular bisector

Related terms

• bisect
• bisected
• bisectrix
• bisegment
• bisegmented
• bisegmentation
• trisect
• trisected
• trisector
• trisegmentation
• quadrisect
• quadrisected
• quadrisector

Translations

A line or curve that bisects or divides a line segment, angle, or other figure into two equal parts

• Arabic: مُنَصِّف m (munaṣṣif), مُقَسِّم (ar) m (muqassim)
• Azerbaijani: tənbölən
• Bengali: দ্বিখণ্ডক (dikhonḍok), বিভাজক (bn) (bibhajok)
• Bulgarian: ъглополовяща (bg) f (ăglopolovjašta)
• Catalan: bisectriu f
• Chinese:

  Mandarin: 二等分線 / 二等分线 (zh) (èr děngfēn xiàn)

• Esperanto: dusekcanto, bisekcanto
• Finnish: puolittaja
• French: bissectrice (fr) f
• Galician: bisectriz (gl) f
• German: Halbierende f, Winkelhalbierende (de) f, Winkelsymmetrale (de) f
• Greek: διχοτόμος (el) f (dichotómos)
• Italian: bisettrice (it) f
• Japanese: 二等分線 (ja) (にとうぶんせん, ni-tōbun-sen)
• Khmer: កន្លះបន្ទាត់ពុះមុំ (km) (kanlas bon toat puh mum)
• Korean: 이등분선(二等分線) (ideungbunseon)
• Malay: pembahagi dua sama
• Persian: نیمساز (fa) (nimsâz)
• Polish: dwusieczna (pl) f, symetralna f
• Portuguese: bisectriz (pt) f
• Romanian: bisectoare (ro) f
• Russian: биссектри́са (ru) f (bissektrísa)
• Spanish: bisectriz (es) f
• Swedish: bisektris (sv) c
• Tagalog: talaktak
• Turkish: açıortay (tr)
• Vietnamese: đường phân giác (vi)

Anagrams

• bitscore

Romanian

Etymology

Etymology tree

French bis-

Latin sectorlbor.

French secteur

French bissecteurbor.

Romanian bisector

Borrowed from French bissecteur.

Adjective

bisector m or n (feminine singular bisectoare, masculine plural bisectori, feminine/neuter plural bisectoare)

1. bisecting

Declension

Declension of bisector

		singular			plural
		masculine	neuter	feminine	masculine	neuter	feminine
nominative- accusative	indefinite	bisector		bisectoare	bisectori	bisectoare
	definite	bisectorul		bisectoarea	bisectorii	bisectoarele
genitive- dative	indefinite	bisector		bisectoare	bisectori	bisectoare
	definite	bisectorului		bisectoarei	bisectorilor	bisectoarelor

Spanish

Noun

bisector m (plural bisectores)

1. bisector

Further reading

• “bisector”, in Diccionario de la lengua española [Dictionary of the Spanish Language] (in Spanish), 24th edition, Royal Spanish Academy [Spanish: Real Academia Española], 30 October 2026