hexagonal

adjective

hex·​ag·​o·​nal hek-ˈsa-gə-nᵊl How to pronounce hexagonal (audio)
1
: having six angles and six sides
2
: having a hexagon as section or base
3
: relating to or being a crystal system characterized by three equal lateral axes intersecting at angles of 60 degrees and a vertical axis of variable length at right angles
hexagonally
hek-ˈsa-gə-nᵊl-ē How to pronounce hexagonal (audio)
adverb

Examples of hexagonal in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Graphene is a two-dimensional sheet of carbon atoms arranged in a hexagonal lattice pattern but only one atom thick. — Ameya Paleja, Interesting Engineering, 30 Oct. 2026 In 1773 physicist and mathematician Joseph Louis Lagrange proved that in two dimensions, the hexagonal configuration is indeed the most space-efficient. — Manon Bischoff, Scientific American, 27 Oct. 2026 The design plays with geometry, reflection and depth—think warm wood panelling, bronzed mirrors, walnut tables, brass accents and luminous geometric details, including a striking hexagonal counter. — Jaclyn Degiorgio, Condé Nast Traveler, 22 Oct. 2026 Its hexagonal skeleton evokes a tortoiseshell, a symbol of longevity and good luck in Japanese culture. — Justin Fenner, Robb Report, 17 Oct. 2026 See All Example Sentences for hexagonal

Word History

First Known Use

1571, in the meaning defined at sense 1

Time Traveler
The first known use of hexagonal was in 1571

Rhymes for hexagonal

See All Rhymes for hexagonal

Browse Nearby Words

hexagon
hexagonal
hexagonal system
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Cite this Entry

“Hexagonal.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hexagonal. Accessed 1 Nov. 2026.

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Kids Definition

hexagonal

adjective
hex·​ag·​o·​nal hek-ˈsag-ən-ᵊl How to pronounce hexagonal (audio)
1
: having six angles and six sides
2
: having a hexagon as a section or base
a hexagonal prism
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