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

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.
Working with Henning Larsen Architects, the Icelandic-Danish artist Ólafur Elíasson designed the building’s sparkling glass façade, its shapes mirroring the hexagonal basalt formations found on Iceland’s coast. Carolyn Heller, Forbes.com, 23 July 2026 The theater is made up of 316 individual hexagonal and pentagonal shapes in 16 different sizes. Anthony D'alessandro, Deadline, 21 July 2026 The demonstration was held on July 15 at Liuxing Street in Yining City, a national-level tourism and leisure district known for its distinctive hexagonal street layout. Jijo Malayil, Interesting Engineering, 17 July 2026 The primary goal is to evaluate how the Starship’s heat shield — a coating of hexagonal tiles designed to protect the ship from the scorching temperatures of reentry — performs. Jackie Wattles, CNN Money, 16 July 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

Browse Nearby Words

Cite this Entry

“Hexagonal.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hexagonal. Accessed 2 Aug. 2026.

Kids Definition

hexagonal

adjective
1
: having six angles and six sides
2
: having a hexagon as a section or base
a hexagonal prism

More from Merriam-Webster on hexagonal

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!