Dictionary
Thesaurus
Reference
Translate
Web

Heptagonal

- 3 dictionary results

hep⋅tag⋅o⋅nal

[hep-tag-uh-nl]
–adjective
having seven sides or angles.

Origin:
1605–15; heptagon + -al 1
hep·ta·gon   (hěp'tə-gŏn')   


(click for larger image in new window)
n.  A polygon having seven sides.

[Latin heptagōnon, from Greek heptagōnos, having seven angles : hepta-, hepta- + -gōnos, angled; see -gon.]
hep·tag'o·nal (-tāg'ə-nəl) adj.

Heptagonal

Hep*tag"o*nal\, a. [Cf. F. heptagonal.] 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.
Search another word or see Heptagonal on Thesaurus | Reference