superphosphate
Americannoun
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Also called acid phosphate. a mixture of calcium acid phosphate and calcium sulfate prepared by treating phosphate rock with sulfuric acid: used chiefly as a fertilizer.
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Also called triple superphosphate. a mixture prepared with phosphoric acid and containing about 45 percent of soluble phosphates, used as a fertilizer.
noun
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a mixture of the diacid calcium salt of orthophosphoric acid Ca(H 2 PO 4 ) 2 with calcium sulphate and small quantities of other phosphates: used as a fertilizer
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a salt of phosphoric acid formed by incompletely replacing its acidic hydrogen atoms; acid phosphate; hydrogen phosphate
Etymology
Origin of superphosphate
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The computer is telling me that an application of superphosphate between crops would be advantageous.”
From Nature ● Oct. 12, 2011
Do you have any idea how much aerial topdressing with superphosphate costs?
From Nature ● Oct. 12, 2011
The Vinh-yen and Phutho plants produce superphosphate fertilizers essential to Ho's farms.
From Time Magazine Archive
In the ordinary manufacture of superphosphate, however, this is not considered necessary, as the heat developed by the chemical action between the phosphate and the acid is sufficiently great.
From Manures and the principles of manuring by Aikman, Charles Morton
This point will be more intelligible when we describe the manufacture of superphosphate.
From Manures and the principles of manuring by Aikman, Charles Morton
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
