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heptahedron

[hep-tuh-hee-druh n]
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noun, plural hep·ta·he·drons, hep·ta·he·dra [hep-tuh-hee-druh] /ˌhɛp təˈhi drə/.
  1. a solid figure having seven faces.

Origin of heptahedron

First recorded in 1650–60; hepta- + -hedron
Related formshep·ta·he·dral, hep·ta·he·dri·cal, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for heptahedron

heptahedron

noun
  1. a solid figure having seven plane facesSee also polyhedron
Derived Formsheptahedral, 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