heptahedron

[ hep-tuh-hee-druhn ]

noun

, plural hep·ta·he·drons, hep·ta·he·dra [hep-t, uh, -, hee, -dr, uh].

1. a solid figure having seven faces.

heptahedron

/ ˌhɛptəˈhiːdrən /

noun

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

Derived Forms

• ˌheptaˈhedral, adjective

Other Words From

• hepta·hedral hepta·hedri·cal adjective

Word History and Origins

Origin of heptahedron¹

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