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heptagonal

American  
[hep-tag-uh-nl] / hɛpˈtæg ə nl /

adjective

  1. having seven sides or angles.


Etymology

Origin of heptagonal

First recorded in 1605–15; heptagon + -al 1

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

The heptagonal shape and the animals on it refer to a set of indigenous teachings that guide how people should treat one another - with love, respect, courage and humility.

From BBC Apr. 2, 2026

An engraved, heptagonal shield commemorating the loss of 11 men in an incident involving the town's Queen Victoria blast furnace on 4 November 1975 is testimony to that.

From BBC Mar. 27, 2025

Some barkeeps banned the heptagonal, and workers in a Glamorgan radio factory refused to accept them in their pay envelopes.

From Time Magazine Archive

In the grubby, working-class suburb of Spandau in the British sector of Berlin stands a huge, rust red castle surrounded by 15 acres of grounds and a stout brick heptagonal wall.

From Time Magazine Archive

Batocrinoidea.—RR separated by a heptagonal anal; first brachial usually quadrangular.

From Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 10 "Echinoderma" to "Edward" by Various

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