hexagonal

adjective

hex·​ag·​o·​nal hek-ˈsa-gə-nᵊl 

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 

adverb

Examples of hexagonal in a Sentence

Recent Examples on the Web

Orange cones still lined the barriers, which have hexagonal pavers laid on the interior section. —Caelyn Pender, Mercury News, 30 Apr. 2026

In the most common form of ice, these building blocks combine to form a cagelike hexagonal structure. —Shalma Wegsman, Quanta Magazine, 27 Apr. 2026

Specifically, nacre is composed of hexagonal crystals of aragonite, a kind of calcium carbonate that is also seen in limestone and that forms precisely into overlapping layers that resemble the brick-and-mortar structure of buildings. —Caitlin Kennedy, Scientific American, 25 Apr. 2026

The eggs are barrel-shaped and are laid on end in a tight, often hexagonal cluster. —Encyclopedia Britannica, 22 Apr. 2026

Word History

First Known Use

1571, in the meaning defined at sense 1

Rhymes for hexagonal

• diagonal
• octagonal
• tetragonal

Kids Definition

hexagonal

adjective

hex·​ag·​o·​nal hek-ˈsag-ən-ᵊl 

1

: having six angles and six sides

2

: having a hexagon as a section or base

a hexagonal prism