Standard Lemma guide

icosihenagon

noun · 1 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 polygon with twenty-one edges and twenty-one angles.

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

History

Etymology

From Ancient Greek εἰκοσιέν (eikosién, “twenty-one”) + -gon, from εἴκοσι (eíkosi) (twenty) + ἕν (hén) (one).

Across languages

Translations

23 source translations are retained for this English entry.

  • Belarusian: дваццаціаднакутнік (dvaccaciadnakutnik) — geometry
  • Belarusian: дваццаціаднавугольнік (dvaccaciadnavuhólʹnik) — geometry
  • Bulgarian: двадесетоедноъгълник (dvadesetoednoǎgǎlnik) — geometry
  • Chinese Mandarin: 二十一邊形 /二十一边形 (èrshíyī biānxíng) — geometry
  • Czech: jednadvacetiúhelník — geometry
  • Dutch: eenentwintighoek — geometry
  • East Frisian Low German: äinuntwintiğkâant — geometry
  • Esperanto: dudekunulatero — geometry
  • Finnish: 21-kulmio (kaksikymmenyksikulmio) — geometry
  • French: henicosagone — geometry
  • Saterland Frisian: Eenuntwintichkaant — geometry
  • West-Frisian: ienentweintichhoek — geometry
  • German: Einundzwanzigeck — geometry
  • Hungarian: huszonegyszög — geometry
  • Italian: endeicosagono — geometry
  • Japanese: 二十一角形 (èrshíyījiǎoxíng) — geometry
  • Korean: 이십일각형 (isibilgakhyeong) — geometry
  • Polish: 21-okąt (dwudziestojednokąt) — geometry
  • Portuguese: hendecoságono — geometry
  • Russian: двадцатиодноугольник (dvadcatiodnougolʹnik) — geometry
  • Spanish: icosihenágono — geometry
  • Swedish: ikosihenagon — geometry
  • Ukrainian: двадцятиоднокутник (dvadcjatyodnokutnyk) — geometry