(n.) The central or topmost stone of an arch. This in some styles is made different in size from the other voussoirs, or projects, or is decorated with carving. See Illust. of Arch.
Example Sentences:
(1) If these is the case the Ir gene (genes) would be the Keystone for maintaining the preferential associations of some pseudoalleles in some haplotypes.
(2) Oil carried by Keystone will displace heavy crude from Venezuela, Nigeria and other countries that also contribute to global warming, Pourbaix said.
(3) The bill, voted through a panel of the house energy and power subcommittee, would compel Obama to over-rule demands for a further review of the project from the Environmental Protection Agency (EPA), and disregard local opposition to the Keystone XL pipeline from landowners along its 1,700-mile route.
(4) But two key Liberal positions, on the Keystone XL and on emissions reductions targets, put Trudeau out of step with Obama, who has made climate change the signature issue of his second term in the White House.
(5) Former hedge fund manager Tom Steyer took out television ads on Tuesday, the night of Obama's state of the union address , attacking Keystone XL, and other wealthy Democratic donors wrote open letters to the White House seeking to shut down the project.
(6) Now that the State Department has just released a final environmental impact report on Keystone XL, which appears to downplay the threat, and greatly increases the odds that the Obama administration will approve the project, I feel I must weigh in once again.
(7) Environmental activists opposed to the Keystone XL tar sands pipeline project protest outside the White House in Washington.
(8) On the campaign trail, however, Clinton had claimed it would be inappropriate to express her views on Keystone given her recent service in Barack Obama’s administration.
(9) The system should include two prehospital and two hospital levels, and the highest level being the keystone of the whole.
(10) A Nebraska court has signed off on the proposed route for the Keystone XL, bringing the controversial project a crucial step closer to reality after six years of legal and political fighting.
(11) The choice President Obama has faced in recent weeks – whether to approve the Keystone XL pipeline – has been framed as a choice between losing the support of environmentalists or alienating America's key ally, Canada.
(12) The company behind the Keystone XL pipeline has asked for its US permit application to be put on hold – a move that would leave the final decision on the controversial tar sands oil project to Barack Obama’s successor.
(13) What makes the Keystone XL pipeline different is the scale – and politics.
(14) One way TransCanada might get around what Clinton called the Keystone “distraction” and pump more tar sands crude into the US might be the Upland pipeline, which the Natural Resources Defense Council (NRDC) has termed a “mini Keystone” .
(15) The virions of CE group viruses (CE, Jamestown Canyon, Keystone, LAC, Melao, SSH, TVT, TAH viruses and South River, an unregistered virus) have three major viral polypeptides, designated G1, G2, and N.
(16) And we saw the Assad regime as the keystone in that arc.
(17) We look forward to the debate and ultimately a decision by the US administration to build Keystone XL,” the company said in a statement.
(18) Greenpeace UK energy campaigner Louise Hutchins said: “The pledge to end dirty coal that David Cameron seems to have casually dropped from his summit speech wasn’t just a footnote but the keystone of any serious policy to clean up Britain’s energy system.
(19) Also speaking at the fossil fuel conference in Houston, ExxonMobil chairman and chief executive Rex Tillerson called for the exploitation of Arctic oil and gas reserves and the building of the Keystone XL pipeline to bring oil from Canada’s tar sands to the US.
(20) This is absolutely not in our national interest.” The campaign against Keystone XL has become a national movement over the last three years, with environmental activists, Nebraska landowners and hedge fund managers all coming out against the project.
Stone
Definition:
(n.) Concreted earthy or mineral matter; also, any particular mass of such matter; as, a house built of stone; the boy threw a stone; pebbles are rounded stones.
(n.) A precious stone; a gem.
(n.) Something made of stone. Specifically: -
(n.) The glass of a mirror; a mirror.
(n.) A monument to the dead; a gravestone.
(n.) A calculous concretion, especially one in the kidneys or bladder; the disease arising from a calculus.
(n.) One of the testes; a testicle.
(n.) The hard endocarp of drupes; as, the stone of a cherry or peach. See Illust. of Endocarp.
(n.) A weight which legally is fourteen pounds, but in practice varies with the article weighed.
(n.) Fig.: Symbol of hardness and insensibility; torpidness; insensibility; as, a heart of stone.
(n.) A stand or table with a smooth, flat top of stone, commonly marble, on which to arrange the pages of a book, newspaper, etc., before printing; -- called also imposing stone.
(n.) To pelt, beat, or kill with stones.
(n.) To make like stone; to harden.
(n.) To free from stones; also, to remove the seeds of; as, to stone a field; to stone cherries; to stone raisins.
(n.) To wall or face with stones; to line or fortify with stones; as, to stone a well; to stone a cellar.
(n.) To rub, scour, or sharpen with a stone.
Example Sentences:
(1) Among its signatories were Michael Moore, Oliver Stone, Noam Chomsky and Danny Glover.
(2) Follow-up studies using radiological methods show worse results (recurrent stones in II: 21.2%, in I: 5.8%, stenosis of EST in II: 6.1%, in I: 3.1%): Late results of EST because of papillary stenosis are still worse compared to those of choledocholithiasis.
(3) Other serious complications were reservoir perforation during catheterisation in 3 and development of stones in the reservoir in 2 patients.
(4) In conclusion, 1) etiology of urinary tract stone in all recurrent stone formers and in all patients with multiple stones must be pursued, and 2) all stones either removed or passed must be subjected to infrared spectrometry.
(5) Predisposition to pancreatitis relates to duct size rather than stone size per se.
(6) Three of these patients, who had a solitary stone could successfully be treated by ESWL as monotherapy.
(7) In cholesterol stones and cholesterolosis specimens, relatively strong muscle strips had similar responses to 10(-6) M cholecystokinin-8 in normal calcium (2.5 mM) and in the absence of extracellular calcium.
(8) No significant complications were related to ESWL and 90% of those followed up after successful ESWL proved stone-free at 6 weeks.
(9) The addition of alcohol to the drinking-water resulted in the formation of stones rich in pigment.
(10) One biliary stone showed cholesterol with spherical bodies of calcium carbonate and pigment.
(11) Israel has complained in recent weeks of an increase in stone throwing and molotov cocktail attacks on West Bank roads and in areas adjoining mainly Palestinian areas of Jerusalem, where an elderly motorist died after crashing his car during an alleged stoning attack.
(12) The first problem facing Calderdale is sheep-rustling Happy Valley – filmed around Hebden Bridge, with its beautiful stone houses straight off the pages of the Guardian’s Lets Move To – may be filled with rolling hills and verdant pastures, but the reality of rural issues are harsh.
(13) The minimal advantage in rapidity of stone dissolution offered by tham E over tham is more than offset by the considerably increased potential for toxic side effects.
(14) The Broken King by Philip Womack Photograph: Troika Books The Sword in the Stone begins with Wart on a "quest" to find a tutor.
(15) It is no longer necessary for the kidney to be free of stones at the end of the operation.
(16) So let's be clear: children taking this drug, which is administered orally, do not get stoned.
(17) Patients with unilateral renal stone(s) with at least 1 diameter between 7 and 25 mm.
(18) Whether they affect ureteral motility in vivo or whether they can counteract ureteral spasm associated with ureteral stones have not been established.
(19) Recurrent stones are usually "silent," and we do not usually treat asymptomatic stones.
(20) Forty impressions were poured with the disinfectant dental stone and a similar number were poured with a comparable, nondisinfectant stone.