English-Thai Dictionary

heptagon

N รูปทรง เจ็ดเหลี่ยม  rub-song-jed-liam

 

heptagonal

A ที่ เป็น รูป เจ็ดเหลี่ยม หรือ เจ็ด มุม 

 

Webster's 1828 Dictionary

HEPTAGON

n.[Gr. seven, and an angle. ] In geometry, a figure consisting of seven sides and as many angles.
In fortification, a place that has seven bastions for defense.

 

HEPTAGONAL

a.Having seven angles or sides. Heptagonal numbers, in arithmetic, a sort of polygonal numbers, wherein the difference of the terms of the corresponding arithmetical progression is 5. One of the properties of these numbers is, that if they are multiplied by 4 , and 9 is added to the product, the sum will be a square number.

 

Webster's 1913 Dictionary

HEPTAGON

Hep "ta *gon, n. Etym: [Gr. "epta ` seven + heptagone. ] (Geom.)

 

Defn: A plane figure consisting of seven sides and having seven angles.

 

HEPTAGONAL

Hep *tag "o *nal, a. Etym: [Cf. F. heptagonal. ]

 

Defn: Having seven angles or sides. Heptagonal numbers (Arith.), the numbers of the series 1, 7, 18, 34, 55, etc. , being figurate numbers formed by adding successively the terms of the arithmetical series 1, 6, 11, 16, 21, etc.

 

New American Oxford Dictionary

heptagon

hep ta gon |ˈheptəˌgän ˈhɛptəˌɡɑn | ▶noun a plane figure with seven straight sides and angles. DERIVATIVES hep tag o nal |hepˈtagənl |adjective ORIGIN late 16th cent.: from Greek heptagonon, neuter (used as a noun ) of heptagonos ‘seven-angled. ’

 

Oxford Dictionary

heptagon

heptagon |ˈhɛptəg (ə )n | ▶noun a plane figure with seven straight sides and angles. DERIVATIVES heptagonal |-ˈtag (ə )n (ə )l |adjective ORIGIN late 16th cent.: from Greek heptagonon, neuter (used as a noun ) of heptagonos ‘seven-angled ’.

 

Duden Dictionary

Heptagon

Hep ta gon Substantiv, Neutrum , das |Heptag o n |griechisch heptágōnos = siebeneckig, zu: gōnía = Ecke, Winkel Siebeneck

 

heptagonal

hep ta go nal Adjektiv |heptagon a l |siebeneckig

 

French Dictionary

heptagone

heptagone n. m. nom masculin Polygone qui a sept côtés et sept angles.

 

Spanish Dictionary

heptagonal

heptagonal adjetivo Que tiene forma de heptágono .

 

heptágono

heptágono nombre masculino Figura geométrica que tiene siete lados .

 

Sanseido Wisdom Dictionary

heptagon

hep ta gon /héptəɡɑ̀n |-ɡ (ə )n /名詞 C 七角形 .hep tag o nal /heptǽɡ (ə )n (ə )l /形容詞