alkali


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al·ka·li

 (ăl′kə-lī′)
n. pl. al·ka·lis or al·ka·lies
1. A carbonate or hydroxide of an alkali metal, the aqueous solution of which is bitter, slippery, caustic, and characteristically basic in reactions.
2. Any of various soluble mineral salts found in natural water and arid soils.
3. Alkali metal.
4. A substance having highly basic properties; a strong base.

[Middle English, alkaline substance from calcined plant ashes, from Medieval Latin, from Arabic al-qily, the ashes, lye, potash : al-, the + qily, ashes (from qalā, to fry, roast; see qly in Semitic roots).]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

alkali

(ˈælkəˌlaɪ)
n, pl -lis or -lies
1. (Chemistry) chem a soluble base or a solution of a base
2. (Geological Science) a soluble mineral salt that occurs in arid soils and some natural waters
[C14: from Medieval Latin, from Arabic al-qili the ashes (of the plant saltwort)]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

al•ka•li

(ˈæl kəˌlaɪ)

n., pl. -lis, -lies,
adj. n.
1.
a. any of various bases, the hydroxides of the alkali metals and of ammonium, that neutralize acids to form salts and turn red litmus paper blue.
b. any of various other active bases, as calcium hydroxide.
2. a soluble mineral salt or a mixture of soluble salts, present in some soils, esp. in arid regions, and detrimental to the growing of most crops.
adj.
3. alkaline.
[1300–50; < Middle French alcali < dial. Arabic al-qalī, saltwort ashes]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

al·ka·li

(ăl′kə-lī′)
Plural alkalis or alkalies
A chemical that acts like a base and reacts strongly with acids, especially a hydroxide or carbonate of an alkali metal.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

alkali

A solution of a substance in water which has a pH of more than 7 and has an excess of hydroxyl ions in the solution.
Dictionary of Unfamiliar Words by Diagram Group Copyright © 2008 by Diagram Visual Information Limited
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.alkali - any of various water-soluble compounds capable of turning litmus blue and reacting with an acid to form a salt and water; "bases include oxides and hydroxides of metals and ammonia"
pyridine - a toxic colorless flammable liquid organic base with a disagreeable odor; usually derived from coal
purine - a colorless crystalline organic base containing nitrogen; the parent compound of various biologically important substances
purine - any of several bases that are derivatives of purine
chemical compound, compound - (chemistry) a substance formed by chemical union of two or more elements or ingredients in definite proportion by weight
glyoxaline, imidazole, iminazole - an organic base C3H4N2; a histamine inhibitor
cyanuramide, melamine - a white crystalline organic base; used mainly in making melamine resins
pyrimidine - any of several basic compounds derived from pyrimidine
2.alkali - a mixture of soluble salts found in arid soils and some bodies of wateralkali - a mixture of soluble salts found in arid soils and some bodies of water; detrimental to agriculture
salt - a compound formed by replacing hydrogen in an acid by a metal (or a radical that acts like a metal)
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
Translations
فِلِز قَلَوي
zásada
alkalibase
lúg
basi
šarmasšarminis
sārms
alkali

alkali

[ˈælkəlaɪ] N (alkalis, alkalies (pl)) → álcali m
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005

alkali

[ˈælkəlaɪ] nalcali m
Collins English/French Electronic Resource. © HarperCollins Publishers 2005

alkali

n pl <-(e)s> → Base f, → Lauge f; (metal, Agr) → Alkali nt
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007

alkali

[ˈælkəlaɪ] nalcali m inv
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995

alkali

(ˈӕlkəlai) noun
a substance, the opposite of acid, such as soda.
ˈalkaline (-lain) adjective
Kernerman English Multilingual Dictionary © 2006-2013 K Dictionaries Ltd.
References in classic literature ?
There are swift-flowing rivers which dash through jagged canons; and there are enormous plains, which in winter are white with snow, and in summer are grey with the saline alkali dust.
As far as the eye can reach stretches the great flat plain-land, all dusted over with patches of alkali, and intersected by clumps of the dwarfish chaparral bushes.
Here and there there are scattered white objects which glisten in the sun, and stand out against the dull deposit of alkali. Approach, and examine them!
Far away on the extreme verge of the alkali plain there rose up a little spray of dust, very slight at first, and hardly to be distinguished from the mists of the distance, but gradually growing higher and broader until it formed a solid, well-defined cloud.
He dragged you through an Arkansas post-oak swamp, let you dry for a moment on the alkali plains of his Idaho ranch, then whirled you into the society of Viennese archdukes.
And she saw Daisy thereafter, through days of alkali and heat, walking, stumbling, in the dust of the wagons, the little sick dog, like a baby, in her arms.
We started across at eight in the morning, pushing through sand that had no bottom; toiling all day long by the wrecks of a thousand wagons, the skeletons of ten thousand oxen; by wagon-tires enough to hoop the Washington Monument to the top, and ox-chains enough to girdle Long Island; by human graves; with our throats parched always, with thirst; lips bleeding from the alkali dust; hungry, perspiring, and very, very weary--so weary that when we dropped in the sand every fifty yards to rest the horses, we could hardly keep from going to sleep--no complaints from Oliver: none the next morning at three o'clock, when we got across, tired to death.
Neither did I put any sal-soda, or other acid or alkali, into my bread.
He dropped a piece of litmus paper into an acid, when it changed instantly to red, and on floating it in an alkali it turned as quickly to blue.
Chlor alkali is used in the form of its derivatives in the automobile industry, construction sector, pulp & paper industry and the food & beverage industry among others.
Glass is made up of three major components - silica, soda, and alkali. Silica is the main ingredient, but the melting point is so high that it's difficult to work with.
In this new role, Varilek, assumes overall operating responsibility for the Chemicals businesses including the Chlor Alkali Products & Vinyls, and Epoxy business segments.