optic axis

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noun Crystallography.

(in a crystal exhibiting double refraction) the direction or directions, uniaxial or biaxial, respectively, along which this phenomenon does not occur.

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Origin of optic axis

First recorded in 1655–65

Words nearby optic axis

optical sound, optical soundtrack, optical tooling, optical tweezers, optical wedge, optic axis, optic canal, optic capsule, optic center, optic chiasm, optic chiasma

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use optic axis in a sentence

Memes that ridiculed political leaders and the Hong Kong Police Force shot through fiber optic cables at light speed.
China’s Internet Is Freer Than You Think|Brendon Hong|December 27, 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.
A Loss by Pat Roberts in Kansas? Actually, Not So Bizarre|Jeff Greenfield|October 3, 2014|DAILY BEAST
For Reagan the “evil empire” was the Soviet Union; for George W. Bush, there was an “axis of Evil.”
How Obama's Shallow Worldview Failed Us|Stuart Stevens|August 29, 2014|DAILY BEAST

Silva concludes that America is afflicted by the socio-optic condition of “colorblind racism.”
How We Got to Ferguson—a Reading List|David Masciotra|August 23, 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 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
On this account the suggested alterations of the axis should not be taken as other than imaginary changes.
Outlines of the Earth's History|Nathaniel Southgate Shaler

British Dictionary definitions for optic axis

optic axis

noun

the direction in a uniaxial crystal or one of the two directions in a biaxial crystal along which a ray of unpolarized light may pass without undergoing double refraction

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

Medical definitions for optic axis

optic axis

The line connecting the anterior and the posterior poles of the eye.