A serac is a column of ice formed by intercepting crevasses on a glacier.    From Wordnik.com.  [Home | Mail Online] Reference

INSKEEP: And the serac, that's this overhanging glacier?.    From Wordnik.com.  [Stories From The 'Savage Mountain': Death On K2] Reference

The serac was always there but I knew it would collapse soon!.    From Wordnik.com.  [Interview with Eugene Constant: Turning Back from Everest « Climber &Laquo; Everest 2010 « Mt. Everest 2010 Season Coverage – Comments Page 1] Reference

Pemba told them to hurry down, as the serac was very unstable.    From Wordnik.com.  [Freddie Wilkinson: The Abandonment of Gerard McDonnell] Reference

So the serac has collapsed, and it's ripped out the fixed ropes.    From Wordnik.com.  [Stories From The 'Savage Mountain': Death On K2] Reference

Although Simmons is maybe a little too fond of the word `serac.'.    From Wordnik.com.  [January 13th, 2008] Reference

As he revived him with oxygen, they were hit by another serac avalanche.    From Wordnik.com.  [Freddie Wilkinson: Heroes in Fine Print] Reference

They knew it was critical to get out from under the serac as fast as possible.    From Wordnik.com.  ['No Way Down'] Reference

It is heavily crevassed, as though it once formed the serac portion of a glacier.    From Wordnik.com.  [South: the story of Shackleton’s last expedition 1914–1917] Reference

Small pieces of ice continually poured down the narrow gully from the serac above.    From Wordnik.com.  [Freddie Wilkinson: Heroes in Fine Print] Reference

Strang unpacked his camera and started to film the serac and the climbers beneath it.    From Wordnik.com.  ['No Way Down'] Reference

In an instant Blanky was on his feet and running out into the sea ice and serac darkness.    From Wordnik.com.  [The Terror]

A huge shadow came out from behind the last serac and slammed Lane's and Goddard's skulls together.    From Wordnik.com.  [The Terror]

“He still has a little pistol with him,” whispered Aylmore, moving cautiously from serac to serac.    From Wordnik.com.  [The Terror]

They took off their backpacks and sat in the snow, staring up at the serac and, below it, the Bottleneck.    From Wordnik.com.  ['No Way Down'] Reference

A serac that looked to be half a mile away and fifty feet high was really only twenty yards away and two feet tall.    From Wordnik.com.  [The Terror]

It could be the wind finding a new route through or around an icy serac or pinnacle, but Crozier knows that it isn't.    From Wordnik.com.  [The Terror]

We would have to go lower down; the traverse must begin further on -- I remembered the serac which served as a milestone.    From Wordnik.com.  [The Greatest Survival Stories Ever Told]

Irving walked closer, pausing at each serac shadow to make sure that it was actually not another narrow crevasse in the ice.    From Wordnik.com.  [The Terror]

Then again, thought Irving, no one but me has come out here alone, without even a lantern, and gone wandering into the serac forest.    From Wordnik.com.  [The Terror]

Every now and then I could hear a big chunk of icefall breaking off a serac to our right and crashing down the mountain in the dark.    From Wordnik.com.  [A Nature for the Great Outdoors] Reference

Still on all fours, he realized that he was in full sight in the bright moonlight, three feet away from the concealment of any serac.    From Wordnik.com.  [The Terror]

We were forced to admit that we were not on the right route, so we retraced our steps and climbed up above the serac which overhung us.    From Wordnik.com.  [The Greatest Survival Stories Ever Told]

"Some serac barriers climbed, some ahead of us ...".    From Wordnik.com. Reference

Old ropes hang from the top of the 2006 serac on Ama Dablam.    From Wordnik.com. Reference

One of them was Rolf Bae, killed when he was stuck by a falling serac.    From Wordnik.com.  [NYT > Home Page] Reference

At 8.30 pm, 150 ft above the start of the Bottleneck, a serac broke off.    From Wordnik.com. Reference

Very difficult climbing, fixing impossible, "we survived a few serac barriers".    From Wordnik.com. Reference

What could the chances have been that you are under a serac just as it collapses??.    From Wordnik.com. Reference

They didn't trust the serac.    From Wordnik.com.  ['No Way Down'] Reference

He peered around the last serac.    From Wordnik.com.  [The Terror]

He trudged back out of the serac field.    From Wordnik.com.  [The Terror]

We went doggedly on from one serac to another.    From Wordnik.com.  [The Greatest Survival Stories Ever Told]