Definition of "hexagonal" []

• Having six sides. (adjective)
• Containing a hexagon or shaped like one. (adjective)
• Mineralogy Having three equal axes intersecting at angles of 60° in one plane and one axis of variable length that is perpendicular to the others. (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "This arrangement is referred to as "hexagonal closest packing;" something often seen in honeycombs or oranges stacked at a fruit stand."
• "The match, the first of 10 games in the final round - commonly referred to as the 'hexagonal' - will kickoff at 7 p.m."
• "The top two teams in each group will advance to the final regional qualifying round, the so-called hexagonal, with the top three teams in that group advancing to the World Cup in Brazil."