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noun
1.
Chemistry.
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 more or less active bases, as calcium hydroxide.
c.
(not in technical use) an alkali metal.
d.
Obsolete. any of various other compounds, as the carbonates of sodium and potassium.
2.
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
3.
Chemistry. alkaline.
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Alkalis
is always a great word to know.
So is slumgullion. Does it mean:
| a children's mummer's parade, as on the Fourth of July, with prizes for the best costumes. |
| a stew of meat, vegetables, potatoes, etc. |
Origin:
1300–50; Middle English alkaly < Middle French alcali < dialectal Arabic al-qalī, variant of Arabic qily saltwort ashes
1300–50; Middle English alkaly < Middle French alcali < dialectal Arabic al-qalī, variant of Arabic qily saltwort ashes
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Based on the Random House Dictionary, © Random House, Inc. 2012.
Cite This Source
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Link To Alkalis
American Heritage
Science Dictionary
alkali  (āl'kə-lī') Pronunciation Key
Plural alkalis or 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 © 2002. Published by Houghton Mifflin. All rights reserved.
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Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
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