point group

American  

noun

Crystallography.

1. a class of crystals determined by a combination of their symmetry elements, all crystals left unchanged by a given set of symmetry elements being placed in the same class.

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point group British  

noun

1. crystallog another term for crystal class

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Etymology

Origin of point group

First recorded in 1900–05

Example Sentences

Its show line-up includes some big names from the Maga world, including Trump's former chief advisor Steve Bannon, classic rocker turned political activist Ted Nugent and Charlie Kirk, the founder of the conservative Turning Point group.

From BBC

Mr Loeb's Third Point group is the second-biggest investor with a 14% stake.

From BBC

Over the next decade, the little-known “West Point group” hammered out a set of principles, including the “unwilling or unable” standard, to underpin the use of Article 51 self-defence justifications for the use of force, in particular against non-state groups in the Middle East.

From The Guardian

When Jeh Johnson, the general counsel at the Pentagon in the Obama administration, compiled a memo to justify the raid on Osama bin Laden’s compound in Abbottabad in 2011, he is reported to have drawn on the work of the West Point group in arguing controversially that Pakistan was “unwilling or unable” to deal with Bin Laden itself.

From The Guardian

“We’re at the top; now it’s just a matter of pushing it out and finishing,” said Steve Marshall with The Fine Point Group, which handles marketing for the project.

From Washington Times