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 adverb

Examples of hexagonal in a Sentence

Recent Examples on the Web
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Stuck in the dirt, the hexagonal silver node looked like a device an alien could have planted. Lauren Steele, The Atlantic, 7 Feb. 2026 After extensive research, the winner was an asymmetric hexagonal metal mesh for transparent glass windows. Mrigakshi Dixit, Interesting Engineering, 3 Feb. 2026 Different arrangements of these hydrogen bonds can shape ice’s crystalline structure into various configurations, from a hexagonal prism to a cubic lattice to less familiar lattice systems such as rhombohedral and tetragonal. Meghan Bartels, Scientific American, 23 Jan. 2026 Crafted with extraordinary precision, the piece features the traditional hexagonal and pentagonal panels of a soccer ball that come together to create a sphere. Rachel Cormack, Robb Report, 22 Jan. 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

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Cite this Entry

“Hexagonal.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hexagonal. Accessed 13 Feb. 2026.

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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