释义
[ kee -stohn ] SHOW IPA
/ ˈkiˌstoʊn / PHONETIC RESPELLING
SEE SYNONYMS FOR keystone ON THESAURUS.COM
noun the wedge-shaped piece at the summit of an arch, regarded as holding the other pieces in place.
something on which associated things depend: the keystone of one's philosophy.
Also called keystone sack .Baseball Slang . second base (def. 1).
Origin of keystone First recorded in 1630–40; key1 + stone
SYNONYMS FOR keystone 2 basis, principle, foundation, linchpin.
SEE SYNONYMS FOR keystone ON THESAURUS.COM
Words nearby keystone key signature, keyslot, keysmash, key stage, key station, keystone , Keystone comedy, keystone joist, Keystone Kop, Keystoner, keystone species
Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020
Example sentences from the Web for keystone Congress is nearing a vote on the Keystone XL pipeline, and lawmakers made their cases for—and against—it Sunday.
Fact-Checking the Sunday Shows: Jan. 4 | PunditFact.com| January 5, 2015| DAILY BEAST
Therefore, we should—you guessed it—develop the Canadian tar sands and build the Keystone pipeline.
How Canadian Oilmen Pinkwash the Keystone Pipeline | Jay Michaelson| December 28, 2014| DAILY BEAST
From the looks of it, mistletoe is a keystone species and plays a crucial role in that forest ecosystem.
Mistletoe is the Vampire of Plants | Helen Thompson| December 21, 2014| DAILY BEAST
But if Clinton waded into the natural gas debate, she entirely avoided the Keystone one.
Hillary Praises Fracking, Stays Silent on Keystone | David Freedlander| December 2, 2014| DAILY BEAST
They have made Keystone XL the poster child of their climate-change efforts.
Why the Keystone XL Pipeline May Not Be Built | Robert Bryce| November 19, 2014| DAILY BEAST
Liberty and fraternity were the two springers of the new arch; its keystone was to be equality.
The Life of Napoleon Bonaparte | William Milligan Sloane
This last terrible experience has been the keystone of my regeneration.
Yolanda: Maid of Burgundy | Charles Major
Over the windows the bricks, of special shapes, were arranged as in a flat arch, with a keystone that jutted slightly.
Helen with the High Hand (2nd ed.) | Arnold Bennett
The keystone of the budget in Mr. Gladstone's conception was the position to be assigned in it to the income-tax.
The Life of William Ewart Gladstone, Vol. 1 (of 3) | John Morley
Political education is like the keystone to the arch—the strength of the whole depends upon it.
Pelham, Complete | Edward Bulwer-Lytton
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British Dictionary definitions for keystone noun Also called: headstone , quoin the central stone at the top of an arch or the top stone of a dome or vault
something that is necessary to connect or support a number of other related things
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
Content related to keystone Learn The Elephant Words You’ll Never Forget (And Help WWF Save A Pachyderm Or Two)An elephant never forgets, and we shouldn't forget about them, either. Learn about the threats to survival elephants and other animals face with this list of important words—and what World Wildlife Fund (WWF) is doing to help.
Words related to keystone cornerstone, mainstay, foundation, wedge, root, support, crown, principle, headstone