octadecagon

English

Etymology

octadeca- +‎ -gon

Noun

octadecagon (plural octadecagons)

(geometry, rare) A polygon with 18 sides and 18 vertices.
A regular octadecagon cannot be constructed using a compass and straightedge.

Translations

geometry

Belarusian: васемнаццацікутнік m (vasjemnaccacikutnik)
Bulgarian: осемнадесетоъгълник m (osemnadesetoǎgǎlnik)
Catalan: octodecàgon m
Chinese:
Mandarin: 十八边形 (zh), 十八邊形／十八边形 (zh)
Czech: osmnáctiúhelník (cs) m
Dutch: achttienhoek (nl) m
Esperanto: dekoklatero
Finnish: 18-kulmio (kahdeksantoistakulmio)
French: octadécagone (fr) m
Galician: octodecágono (gl) m
Georgian: თვრამეტკუთხედი (tvrameṭḳutxedi)
German: Achtzehneck (de) n
Greek: δεκαοκτάγωνο n (dekaoktágono)
Hungarian: tizennyolcszög
Italian: ottadecagono (it) m
Japanese: 十八角形 (jūhachikakukei)
Korean: 십팔각형 (sip'palgakhyeong)
Macedonian: осумнаесетаголник m (osumnaesetagolnik)
Polish: osiemnastokąt m
Portuguese: octodecágono (pt) m
Romanian: octodecagon n
Russian: восемнадцатиугольник (ru) m (vosemnadcatiugolʹnik)
Serbo-Croatian:
Cyrillic: осамнаестоугао m

Roman: osamnaestougao m
Slovene: osemnajstkotnik m
Spanish: octodecágono (es) m
Swedish: oktadekagon m
Thai: รูปสิบแปดเหลี่ยม m
Turkish: onsekizgen m
Ukrainian: вісімнадцятикутник (visimnadcjatykutnyk)

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