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octahedron

American  
[ok-tuh-hee-druhn] / ˌɒk təˈhi drən /

noun

octahedrons, plural octahedra plural
  1. a solid figure having eight faces.


octahedron British  
/ ˌɒktəˈhiːdrən /

noun

  1. a solid figure having eight plane faces

"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

octahedron Scientific  
/ ŏk′tə-hēdrən /
octahedrons plural
  1. A polyhedron that has eight faces.


Other Word Forms

Etymology

Origin of octahedron

1560–70; < Greek oktáedron eight-sided (neuter of oktáedros ), equivalent to okta- octa- + -edron -hedron

Vocabulary lists containing octahedron

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

"Specifically, these molecules introduce in-plane hydrogen bonding that is compatible with both the ionic nature and octahedron spacing of halide perovskites," she said.

From Science Daily • Jun. 6, 2024

All of this is enough to send any mother into a spiral of madness, or an even more elaborate shape — a Möbius strip of insanity, an octahedron of derangement.

From New York Times • Jan. 11, 2022

As six ligands approach the metal ion along the axes of the octahedron, their point charges repel the electrons in the d orbitals of the metal ion.

From Textbooks • Feb. 14, 2019

Octahedral complexes have a coordination number of six, and the six donor atoms are arranged at the corners of an octahedron around the central metal ion.

From Textbooks • Feb. 14, 2019

Then SD-03 lifted the octahedron in its arms.

From "Ready Player One: A Novel" by Ernest Cline

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