octahedral

American  

[ok-tuh-hee-druhl] / ˌɒk təˈhi drəl /

adjective

1. having the form of an octahedron.

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octahedral British  

/ ˌɒktəˈhiːdrəl /

adjective

1. having eight plane surfaces

2. shaped like an octahedron

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Etymology

Origin of octahedral

First recorded in 1750–60; octahedr(on) + -al ¹

Example Sentences

In iron-carbon alloys such as steel, carbon atoms occupy small octahedral "cages" formed by surrounding iron atoms.

From Science Daily • Jan. 26, 2026

Barium titanate belongs to the perovskite group of materials, where a titanium ion resides within an oxygen octahedral cage.

From Science Daily • Apr. 25, 2024

"Synthetic anion binding is much more challenging because anions can be all kinds of shapes -- spherical, octahedral, even tetrahedral," Gong says.

From Science Daily • Oct. 10, 2023

Ratios of less than 1:1 are observed when some of the octahedral holes remain empty.

From Textbooks • Feb. 14, 2019

In addition, the rock is filled with minute crystals of octahedral form which are composed of magnetite, and scattered through the rock are minute yellow crystals of rutile.

From Illustrated Catalogue Of The Collections Obtained From The Indians Of New Mexico And Arizona In 1879 Second Annual Report of the Bureau of Ethnology to the Secretary of the Smithsonian Institution, 1880-81, Government Printing Office, Washington, 1883, pages 307-428 by Stevenson, James