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heptahedron

American  
[hep-tuh-hee-druhn] / ˌhɛp təˈhi drən /

noun

plural

heptahedrons, heptahedra

  1. a solid figure having seven faces.

heptahedron British  
/ ˌhɛptəˈhiːdrən /

noun

  1. a solid figure having seven plane faces See also polyhedron

"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

Other Word Forms

  • heptahedral adjective
  • heptahedrical adjective

Etymology

Origin of heptahedron

First recorded in 1650–60; hepta- + -hedron

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.