heptagon

[ hep-tuh-gon, -guhn ]

noun
  1. a polygon having seven angles and seven sides.

Origin of heptagon

1
First recorded in 1560–70, heptagon is from the Greek word heptágōnos seven-cornered. See hepta-, -gon

Words Nearby heptagon

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use heptagon in a sentence

  • In the power room of the heptagon a hexan officer turned fiercely to another, who was offering advice.

    Spacehounds of IPC | Edward Elmer Smith
  • As that dazzling wall sprang into being, the sparkling green protection died from the walls of the heptagon.

    Spacehounds of IPC | Edward Elmer Smith
  • The massive heptagon was now drifting back toward Jupiter at constant velocity.

    Spacehounds of IPC | Edward Elmer Smith
  • There he and his fellows labored day after day learning every secret of every item of armament and equipment aboard the heptagon.

    Spacehounds of IPC | Edward Elmer Smith
  • The side of a regular heptagon is equal to half the side of an equilateral triangle inscribed in the same circle.

British Dictionary definitions for heptagon

heptagon

/ (ˈhɛptəɡən) /


noun
  1. a polygon having seven sides

Derived forms of heptagon

  • heptagonal (hɛpˈtæɡənəl), adjective

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for heptagon

heptagon

[ hĕptə-gŏn′ ]


  1. A polygon having seven sides.

The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.