of, relating to, or having the form of a hexagon. having a hexagon as a base or cross section: a hexagonal prism.
Crystallography. noting or pertaining to a system of crystallization in which three equal axes intersect at angles of 60° on one plane, and the fourth axis, of a different length, intersects them perpendicularly.
Origin of hexagonal
Related formshex·ag·o·nal·ly, adverbpseu·do·hex·ag·o·nal, adjectivepseu·do·hex·ag·o·nal·ly, adverbsub·hex·ag·o·nal, adjective
First recorded in 1565–75; hexagon
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for hexagonal
Historical Examples of hexagonal
British Dictionary definitions for hexagonal
Derived Formshexagonally, adverb
having six sides and six angles
of or relating to a hexagon
crystallog relating or belonging to the crystal system characterized by three equal coplanar axes inclined at 60° to each other and a fourth longer or shorter axis at right angles to their planeSee also trigonal
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word Origin and History for hexagonal
1570s, from hexagon + -al (1). Related: Hexagonally.
Online Etymology Dictionary, © 2010 Douglas Harper
Having six sides.
Relating to a crystal having three axes of equal length intersecting at angles of 60° in one plane, and a fourth axis of a different length that is perpendicular to this plane. The mineral calcite has hexagonal crystals. See illustration at crystal.
The American Heritage® Science Dictionary
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