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sulphate

British  
/ ˈsʌlfeɪt /

noun

  1. any salt or ester of sulphuric acid, such as sodium sulphate, Na 2 SO 4 , sodium hydrogen sulphate, or diethyl sulphate, (C 2 H 5 ) 2 SO 4

  2. Often shortened to: sulphslang amphetamine sulphate

"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

verb

  1. (tr) to treat with a sulphate or convert into a sulphate

  2. to undergo or cause to undergo the formation of a layer of lead sulphate on the plates of an accumulator

"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

Other Word Forms

  • sulphation noun

Etymology

Origin of sulphate

C18: from New Latin sulfātum; see sulphur

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.

Bikita Minerals, Zimbabwe's largest lithium mine and owned by Sinomine Resources Group, is working on feasibility studies for the construction of a lithium sulphate plant in December, spokesperson Tinomuda Chakanyuka said.

From Barron's • Feb. 26, 2026

In contrast, the sediments of the previous, first phase of the crater lake showed clear traces of high sulphate content and bacterial sulphate decomposition.

From Science Daily • Dec. 5, 2023

Despite its deadly potential, the nerve-gas antidote atropine sulphate can be extracted from it.

From BBC • Jul. 10, 2023

Based on the five-year binding agreement announced on Monday, Element 25 will supply Stellantis with high-purity manganese sulphate monohydrate to be used in battery packs.

From Reuters • Jan. 9, 2023

Thus, if nicotine sulphate is applied before rather than after the apple blossoms turn pink one of the important predators is spared, probably because it is still in the egg stage.

From "Silent Spring" by Rachel Carson