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

To go around it, StemRad’s team broke it apart into hexagonal rods of varying lengths and cross-sections. — Jacek Krywko, ArsTechnica, 13 Aug. 2026

The scientists combined thousands of hexagonal rods of the rigid plastic together like scales to create a flexible garment. — Charles Q. Choi, Space.com, 12 Aug. 2026

The quadrilateral, pentagonal and hexagonal cases all obey this formula, but no larger shapes have been confirmed. — Jack Murtagh, Scientific American, 10 Aug. 2026

Inside the reactor core, steel pins packed with MOX fuel sit in tight hexagonal patterns. — Aman Tripathi, Interesting Engineering, 7 Aug. 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