heptadecagon

hept·a·dec·a·gon
H4E1P3T1A1D2E1C3A1G2O1N1
US/hɛp.təˈdɛ.kə.ɡɑn/

noun

A polygon with seventeen sides and seventeen angles.

Similar
17-gonheptakaidecagonseptadecagon
Scrabble 21
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Meanings

nounheptadecagon (plural heptadecagons)

plural heptadecagons

  1. geometryA polygon with seventeen sides and seventeen angles.

    The regular 17-sided polygon (heptadecagon) can be constructed with the help of a compass and a ruler.

    2001, Kunihiko Kasahara, Amazing Origami, New York, N.Y.: Sterling Publishing, →ISBN

    Synonyms: 17-gon, heptakaidecagon, septadecagon

Synonyms & antonyms

nounA polygon with seventeen sides and seventeen angles.

Similar
17-gonheptakaidecagonseptadecagon
Also see
17-gonheptakaidecagon

Origin

From heptadeca- + -gon.

Full word history & related roots →

Translations

Bulgarian седемнадесетоъгълник
  • седемнадесетоъгълник (sedemnadesetoăgălnik)geometry
Catalan heptadecàgon
  • heptadecàgongeometry
Chinese Mandarin 十七邊形 /十七边形
  • 十七邊形 /十七边形 (shíqī biānxíng)geometry
Czech sedmnáctiúhelník
  • sedmnáctiúhelníkgeometry
Dutch zeventienhoek
  • zeventienhoekgeometry
Esperanto dekseplatero
  • dekseplaterogeometry
Finnish 17-kulmio (seitsentoistakulmio)
  • 17-kulmio (seitsentoistakulmio)geometry
French heptadécagone
  • heptadécagonegeometry
German Siebzehneck
  • Siebzehneckgeometry
Greek δεκαεπτάγωνο, δεκαεφτάγωνο
  • δεκαεπτάγωνο (dekaeptágono)geometry
  • δεκαεφτάγωνο (dekaeftágono)geometry
Hungarian tizenhétszög
  • tizenhétszöggeometry
Italian eptadecagono
  • eptadecagonogeometry
Japanese 十七角形
  • 十七角形 (jūshichikakukei)geometry
Korean 십칠각형
  • 십칠각형 (sipchilgakhyeong)geometry
Polish siedemnastokąt
  • siedemnastokątgeometry
Portuguese heptadecágono
  • heptadecágonogeometry
Romanian heptadecagon
  • heptadecagongeometry
Russian семнадцатиугольник
  • семнадцатиугольник (semnadcatiugolʹnik)geometry
Spanish heptadecágono
  • heptadecágonogeometry
Swedish heptadekagon
  • heptadekagongeometry
Thai รูปสิบเจ็ดเหลี่ยม
  • รูปสิบเจ็ดเหลี่ยมgeometry
Turkish onyedigen
  • onyedigengeometry
Ukrainian сімнадцятикутник
  • сімнадцятикутник (simnadcjatykutnyk)geometry
Cite this entry
APA

heptadecagon. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/heptadecagon

MLA

“heptadecagon.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/heptadecagon. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “heptadecagon,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/heptadecagon.

Source: heptadecagon on Wiktionary, CC BY-SA 4.0.