HEPTAGON

heptagon

(noun) a seven-sided polygon

Source: WordNet® 3.1

Etymology

Noun

heptagon (plural heptagons)

(geometry) A polygon with seven sides and seven angles.

Synonyms

• septagon (proscribed)

Anagrams

• pathogen, phone tag

Source: Wiktionary

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

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

Source: Webster’s Unabridged Dictionary 1913 Edition