alkali

[ al-kuh-lahy ]

/ ˈæl kəˌlaɪ /

SEE SYNONYMS FOR alkali ON THESAURUS.COM

noun, plural al·ka·lis, al·ka·lies.

Chemistry.

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.
any of various other more or less active bases, as calcium hydroxide.
(not in technical use) an alkali metal.
Obsolete. any of various other compounds, as the carbonates of sodium and potassium.

Agriculture. a soluble mineral salt or a mixture of soluble salts, present in some soils, especially in arid regions, and detrimental to the growing of most crops.

adjective

Chemistry. alkaline.

Origin of alkali

1300–50; Middle English alkaly<Middle French alcali<dialectal Arabic al-qalī, variant of Arabic qily saltwort ashes

Words nearby alkali

alizarin crimson, alk., alkahest, alkalemia, alkalescent, alkali, alkali blue, alkalic, alkali denaturation test, alkali feldspar, alkali flat

Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for alkali

"Yes, good crop that—'nough to stuff a mattress with; looks better to-day than when it's full of alkali dust," replied the Major.
John Ermine of the Yellowstone|Frederic Remington
He was one of the men to whom alkali is a constant poison, and his lips were always cracked and bleeding.
Mystery Ranch|Arthur Chapman
After that we had plenty of buffalo meat, and for eight or ten days we had nothing else, and only alkali water to drink.
Then and Now|Robert Vaughn
Ammonia is also active, but not quite in the same manner as the alkali hydroxides.
Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 6|Various

All chemical leavening agents are Similar in their action, and they are composed of an acid and an alkali.
Woman's Institute Library of Cookery, Vol. 1|Woman's Institute of Domestic Arts and Sciences

British Dictionary definitions for alkali

alkali

/ (ˈælkəˌlaɪ) /

noun plural -lis or -lies

chem a soluble base or a solution of a base

a soluble mineral salt that occurs in arid soils and some natural waters

Word Origin for alkali

C14: from Medieval Latin, from Arabic al-qili the ashes (of the plant saltwort)

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

Cultural definitions for alkali

alkali

[ (al-kuh-leye) ]

A bitter, caustic mineral often found in large beds in the desert. Alkalis are bases; two common examples are lye and ammonia.

notes for alkali

Plants have difficulty growing in soil that is rich in alkalis.

Medical definitions for alkali

alkali

[ ăl′kə-lī′ ]

n. pl. al•ka•lis

A carbonate or hydroxide of an alkali metal, the aqueous solution of which is bitter, slippery, caustic, and characteristically basic in reactions.

Any of various soluble mineral salts found in natural water and arid soils.

Alkali metal.

Scientific definitions for alkali

alkali

[ ăl′kə-lī′ ]

Plural alkalis alkalies

A hydroxide of an alkali metal. The aqueous solution of alkalis is bitter, slippery, caustic, and characteristically basic in reactions.

单词	alkali
释义	alkali [ al-kuh-lahy ] / ˈæl kəˌlaɪ / SEE SYNONYMS FOR alkali ON THESAURUS.COM noun, plural al·ka·lis, al·ka·lies. Chemistry. 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. any of various other more or less active bases, as calcium hydroxide. (not in technical use) an alkali metal. Obsolete. any of various other compounds, as the carbonates of sodium and potassium. Agriculture. a soluble mineral salt or a mixture of soluble salts, present in some soils, especially in arid regions, and detrimental to the growing of most crops. adjective Chemistry. alkaline. Origin of alkali 1300–50; Middle English alkaly<Middle French alcali<dialectal Arabic al-qalī, variant of Arabic qily saltwort ashes Words nearby alkali alizarin crimson, alk., alkahest, alkalemia, alkalescent, alkali, alkali blue, alkalic, alkali denaturation test, alkali feldspar, alkali flat Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for alkali "Yes, good crop that—'nough to stuff a mattress with; looks better to-day than when it's full of alkali dust," replied the Major. John Ermine of the Yellowstone\|Frederic Remington He was one of the men to whom alkali is a constant poison, and his lips were always cracked and bleeding. Mystery Ranch\|Arthur Chapman After that we had plenty of buffalo meat, and for eight or ten days we had nothing else, and only alkali water to drink. Then and Now\|Robert Vaughn Ammonia is also active, but not quite in the same manner as the alkali hydroxides. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 6\|Various All chemical leavening agents are Similar in their action, and they are composed of an acid and an alkali. Woman's Institute Library of Cookery, Vol. 1\|Woman's Institute of Domestic Arts and Sciences British Dictionary definitions for alkali alkali / (ˈælkəˌlaɪ) / noun plural -lis or -lies chem a soluble base or a solution of a base a soluble mineral salt that occurs in arid soils and some natural waters Word Origin for alkali C14: from Medieval Latin, from Arabic al-qili the ashes (of the plant saltwort) 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 Words related to alkali salt, antacid, caustic soda Cultural definitions for alkali alkali [ (al-kuh-leye) ] A bitter, caustic mineral often found in large beds in the desert. Alkalis are bases; two common examples are lye and ammonia. notes for alkali Plants have difficulty growing in soil that is rich in alkalis. The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. Medical definitions for alkali alkali [ ăl′kə-lī′ ] n. pl. al•ka•lis A carbonate or hydroxide of an alkali metal, the aqueous solution of which is bitter, slippery, caustic, and characteristically basic in reactions. Any of various soluble mineral salts found in natural water and arid soils. Alkali metal. The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company. Scientific definitions for alkali alkali [ ăl′kə-lī′ ] Plural alkalis alkalies A hydroxide of an alkali metal. The aqueous solution of alkalis is bitter, slippery, caustic, and characteristically basic in reactions. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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alkali

noun, plural al·ka·lis, al·ka·lies.

adjective

Origin of alkali

Words nearby alkali

Example sentences from the Web for alkali

British Dictionary definitions for alkali

noun plural -lis or -lies

Word Origin for alkali

Words related to alkali

Cultural definitions for alkali

notes for alkali

Medical definitions for alkali

n. pl. al•ka•lis

Scientific definitions for alkali

Plural alkalis alkalies