superphosphate
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.
Also called triple superphosphate. a mixture prepared with phosphoric acid and containing about 45 percent of soluble phosphates, used as a fertilizer.
Origin of superphosphate
1Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
How to use superphosphate in a sentence
"Certainly," and Fred went to his room and soon returned with a glass with about two teaspoonfuls of acid phosphate in it.
Fred Fearnot's New Ranch | Hal StandishAn acid phosphate is sometimes used with soda, and this gives a harmless neutral substance.
Foods and Household Management | Helen KinneThe acid phosphate solution evidently had a neutralizing effect upon the lime in the concrete, as the paint is in fair condition.
Paint Technology and Tests | Henry A. GardnerThe fertilizers that I get more inquiries about than any others are the phosphates—bone meal, acid phosphate and rock phosphate.
Acidulated bone phosphor presumably is acid phosphate of calcium.
British Dictionary definitions for superphosphate
/ (ˌsuːpəˈfɒsfeɪt) /
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
a salt of phosphoric acid formed by incompletely replacing its acidic hydrogen atoms; acid phosphate; hydrogen phosphate
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
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