rotation-inversion axis

[ roh-tey-shuhn in-vur-zhuhn, -shuhn ]

/ roʊˈteɪ ʃən ɪnˈvɜr ʒən, -ʃən /

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noun Crystallography.

an axis of a crystal such that rotating about the axis and then inverting the crystal brings the crystal back to its original position.

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Also called symmetry axis of rotary inversion.

Words nearby rotation-inversion axis

Following one week of “R&R,” the team will spend one more six-week rotation in the ETU before entering a three-week isolation.
$10,000 a Month for Ebola Fighters|Abby Haglage|October 7, 2014|DAILY BEAST
This could shift global media decision-making from its familiar New York-Los Angeles axis to the Bay Area.
Battle of the Upstarts: Houston vs. San Francisco Bay|Joel Kotkin|October 5, 2014|DAILY BEAST
Six years later, after one more dance with FDR, Kansans returned to their normal political axis.
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"Palmer always keeps his word," beamed Weaver, putting the right hander back in the rotation.
Will the Real Jim Palmer Please Stand Up|Tom Boswell|September 27, 2014|DAILY BEAST

Others who will join the rotation include Alan Alda, Candice Bergen, Stacy Keach, and Carol Burnett.
Fall Broadway Preview: 'This Is Our Youth,' Bradley Cooper as ‘The Elephant Man,' and More|Janice Kaplan|September 11, 2014|DAILY BEAST
The long axis of the hip-roof crystal is often so shortened that it resembles the envelop crystal of calcium oxalate.
A Manual of Clinical Diagnosis|James Campbell Todd
Cassini observed, by the position of certain spots, the revolution of the planet Venus on its axis.
The Every Day Book of History and Chronology|Joel Munsell
The special application of these facts must be reserved till we come to treat of the rotation of crops.
Elements of Agricultural Chemistry|Thomas Anderson
The same would be the case if the polar axis of one sphere stood precisely at right angles to that of the other.
Outlines of the Earth's History|Nathaniel Southgate Shaler
Thus the wide habitability of the earth is an effect arising from the inclination of its polar axis.
Outlines of the Earth's History|Nathaniel Southgate Shaler