The annulus is a ring that surrounds the well's casing.    From Wordnik.com.  [PLIGG_Visual_Name - PLIGG_Visual_RSS_All] Reference

They are composed of a strong outer covering called the annulus, and a soft jelly center called the nucleus.    From Wordnik.com.  [BeanRocket Blog Communities Lastest Posts] Reference

It will take five to seven days to reach the outermost portion of Macondo known as the annulus, and fill it with mud and cement, he said.    From Wordnik.com.  [chron.com Chronicle] Reference

The name annular eclipse comes from the Latin annulus, meaning ring.    From Wordnik.com.  [The Times of India] Reference

He then bounced and rolled into the avian annulus.    From Wordnik.com.  [The Garden of Rama]

Sometimes the ring, or annulus, is movable on the stem.    From Wordnik.com.  [Among the Mushrooms A Guide For Beginners] Reference

His eyes, like a comb-box. like the annulus piscatoris, or.    From Wordnik.com.  [Five books of the lives, heroic deeds and sayings of Gargantua and his son Pantagruel] Reference

Armillate: with a ring or annulus of raised or different tissue.    From Wordnik.com.  [Explanation of Terms Used in Entomology] Reference

Late Thursday that relief well intercepted the annulus of Macondo.    From Wordnik.com.  [After the well is killed] Reference

The volva and ring, or annulus, are not always present in mushrooms.    From Wordnik.com.  [Among the Mushrooms A Guide For Beginners] Reference

The annulus is an area between the inner piping and the outer casing.    From Wordnik.com.  [Gulf Oil Spill: Risks Remain With Gulf Well Cap Coming Off] Reference

There was no sign of hydrocarbons in the annulus, so that saved a step.    From Wordnik.com.  [After the well is killed] Reference

He reached the outer avian annulus just as he heard a human voice behind him.    From Wordnik.com.  [The Garden of Rama]

But both faces are usually reserved, kept well back, in the annulus of night.    From Wordnik.com.  [Gravity's Rainbow]

The pulmonary valve is a circle and the outer layer, that's called the annulus.    From Wordnik.com.  [Tetralogy of Fallot — TOF Surgery] Reference

Richard had expected that there would be an outer annulus protecting the second habitat.    From Wordnik.com.  [The Garden of Rama]

It deposited them in an enclosed annulus that completely circumscribed the Earth habitat.    From Wordnik.com.  [The Garden of Rama]

He was certain that a deployable camera would soon be pushed into the annulus to look for him.    From Wordnik.com.  [The Garden of Rama]

The lights the humans were shining into the passage reflected off the inner wall of the annulus.    From Wordnik.com.  [The Garden of Rama]

However, what was obviously a door was also more than twenty meters above the floor of the annulus.    From Wordnik.com.  [The Garden of Rama]

Or they could be rising through the annulus, the area between the casing and the rock wall of the well.    From Wordnik.com.  [In gulf, crews begin test to ready for 'static kill' attempt] Reference

O te miserum ait annulus, si meas vices obires, videres, audires, &c. nihil non odio dignimi observares.    From Wordnik.com.  [Anatomy of Melancholy] Reference

After speeding through the annulus and finding a portal, she soared over the green region in the interior.    From Wordnik.com.  [The Garden of Rama]

The deployable camera suddenly stopped moving and its light remained focused on a specific spot in the annulus.    From Wordnik.com.  [The Garden of Rama]

The standard plan, outlined for months, has been to send mud through the relief well, initially into the annulus.    From Wordnik.com.  [BP aims to plug gulf oil well for good with two-pronged 'kill' shot] Reference

He dropped a small object from his pack into the habitat to ensure that its floor level was the same as the annulus.    From Wordnik.com.  [The Garden of Rama]

The rocky annulus which surrounds it is very lofty and precipitous, and at one point reaches a height of 17,300 feet.    From Wordnik.com.  [The Astronomy of Milton's 'Paradise Lost'] Reference

Or they could be coming up through the annulus, the space between the casing and the broader casing that lines the well.    From Wordnik.com.  [Allen: 'Static kill' is controlling oil well, but more work still ahead] Reference

His heart rate surged as his mind told him that the floor of the habitat interior was far below the floor of the annulus.    From Wordnik.com.  [The Garden of Rama]

They unequivocally determined that the cement in the annulus, the cement in the shoe track, and the float equipment all failed.    From Wordnik.com.  [Robert L. Cavnar: BP's Internal Report Doesn't Hold Up Under Academy Scrutiny] Reference

His exit was one meter above the floor of the annulus./should have crawled backward, he thought, and dragged my pack and clothes.    From Wordnik.com.  [The Garden of Rama]

We considered putting a, a tubing line down the annulus, that would be the area between the drill steel and the raw hole, the wall.    From Wordnik.com.  [CNN Transcript Aug 15, 2007] Reference

A distinct operculum is usually detached by the help of the annulus, and its removal may leave the mouth of the capsule widely open.    From Wordnik.com.  [Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 "Brescia" to "Bulgaria"] Reference

The genus is distinguished by its green to yellowish-green cap, radial streaks, a ring (annulus) on the stalk and a cup at the stalk base.    From Wordnik.com.  [Chapter 7] Reference