Phrase guide

isosceles triangle

noun · 2 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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1

noun

Meaning 1

A triangle having at least two sides equal.

Definition source: English Wiktionary via Wiktextract

Topics: geometry, mathematics, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

a triangle with two equal sides

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: triangle, trigon, trilateral

History

Etymology

No etymology was provided for this word.

Across languages

Translations

24 source translations are retained for this English entry.

  • Azerbaijani: bərabəryanlı üçbucaq — triangle having two sides equal
  • Chinese Mandarin: 等腰三角形 (děngyāosānjiǎoxíng) — triangle having two sides equal
  • Dutch: gelijkbenige driehoek — triangle having two sides equal
  • Estonian: võrdhaarne kolmnurk — triangle having two sides equal
  • Finnish: tasakylkinen kolmio — triangle having two sides equal
  • French: triangle isocèle — triangle having two sides equal
  • German: gleichschenkliges Dreieck — triangle having two sides equal
  • Hungarian: egyenlő szárú háromszög — triangle having two sides equal
  • Icelandic: jafnarma þríhyrningur — triangle having two sides equal
  • Irish: triantán comhchosach — triangle having two sides equal
  • Italian: triangolo isoscele — triangle having two sides equal
  • Japanese: 二等辺三角形 (nitouhen-sankakukei) — triangle having two sides equal
  • Korean: 이등변삼각형 (ideungbyeonsamgakhyeong) — triangle having two sides equal
  • Malay: segitiga kakisama — triangle having two sides equal
  • Māori: tapatoru waerite — triangle having two sides equal
  • Moore: yɩɩb-taas kog-tãabga — triangle having two sides equal
  • Polish: trójkąt równoramienny — triangle having two sides equal
  • Portuguese: triângulo isósceles — triangle having two sides equal
  • Russian: равнобе́дренный треуго́льник (ravnobédrennyj treugólʹnik) — triangle having two sides equal
  • Tagalog: kaduhaing tatsiha — triangle having two sides equal
  • Thai: สามเหลี่ยมหน้าจั่ว (sǎam-lìiam-nâa-jùua) — triangle having two sides equal
  • Turkish: ikizkenar üçgen — triangle having two sides equal
  • Vietnamese: tam giác cân — triangle having two sides equal
  • Welsh: triongl isosgeles — triangle having two sides equal