octahedron
Americannoun
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octahedrons,
plural
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octahedra
plural
noun
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octahedrons
plural
Other Word Forms
Noun Inflected 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.
See Examples For:
"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
To bond six fluorine atoms, the 3s orbital, the three 3p orbitals, and two of the 3d orbitals form six equivalent sp3d2 hybrid orbitals, each directed toward a different corner of an octahedron.
From Textbooks ● Feb. 14, 2019
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
Then SD-03 lifted the octahedron in its arms.
From "Ready Player One: A Novel" by Ernest Cline
To create the new structures, the researchers synthesized silver nanoparticles shaped like truncated octahedra, which they call "mecons."
From Science Daily ● May 30, 2026
The conduction path of pyrochlore-type structure cover the F ions located in the tunnels created by MO6 octahedra.
From Science Daily ● Apr. 2, 2024
It is worthy of notice that in diatomic elements four funnels open on the faces of tetrahedra; in triatomic, six funnels on the faces of cubes; in tetratomic, eight funnels on the faces of octahedra.
From Occult Chemistry Clairvoyant Observations on the Chemical Elements by A. P. Sinnett
They all crystallize in octahedra and contain twelve molecules of water of crystallization.
From An Elementary Study of Chemistry by William McPherson
Changed "octrahedra" to "octahedra" in the footnote on page 565.
From De Re Metallica, Translated from the First Latin Edition of 1556 by Georgius Agricola
These materials contained the rings of classic chain mail but also octahedrons with different angles or fewer cross struts.
From Scientific American ● Aug. 20, 2021
Adjacent octahedrons were rotated 90 degrees from one another and connected at the corners.
From Scientific American ● Aug. 20, 2021
Scientists created a platinum alloy blended with nickel, forming three-dimensional shapes at the nanometer scale -- in this case, octahedrons.
From Scientific American ● Jun. 20, 2013
It propels the viewer to circle it and savor its tetrahedrons and octahedrons swelling and flowing.
From Time Magazine Archive
These crystals appear to be regular octahedrons when observed under the microscope.
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.
