or·​tho·​phos·​phate | \ ˌȯr-thə-ˈfäs-ˌfāt How to pronounce orthophosphate (audio) \

Definition of orthophosphate

: a salt or ester of orthophosphoric acid

Examples of orthophosphate in a Sentence

Recent Examples on the Web The Water Department continually treats city water with a chemical called orthophosphate that creates a film on the inside of pipes and plumbing and forms a hard barrier that prevents lead from leaching into the water. Peter Krouse, cleveland, 9 Dec. 2021 The next month, the state issued a permit for the city to pump orthophosphate and polyphosphate into the water to coat the pipes and prevent erosion. John Flesher And David Eggert, Detroit Free Press, 8 Nov. 2021 To improve the applications of chlorine for disinfection and orthophosphate for corrosion control. Keith Matheny, Detroit Free Press, 2 Nov. 2021 The federal government outlawed lead in pipe construction in the 1980s, and additives like orthophosphate prevent it from corroding into the water. Jonathan Schifman, Popular Mechanics, 8 Aug. 2021 In Port Manatee on April 5, a water sample detected 2.1 milligrams per liter of orthophosphate, a form of phosphorus. Li Cohen, CBS News, 13 Apr. 2021 If those requirements and others aren’t met, the federal agency could revoke its approval and Denver Water would then be required to inject a nutrient — orthophosphate — into its water system. Conrad Swanson, The Denver Post, 20 Dec. 2019 Then, in May, officials added a new chemical to the water — orthophosphate — that has proved helpful at preventing leaching. John Schwartz, New York Times, 24 Aug. 2019 At the state’s urging, the city began testing in homes to see if the orthophosphate was working its way into the water. John Schwartz, New York Times, 24 Aug. 2019 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'orthophosphate.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of orthophosphate

1859, in the meaning defined above

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Time Traveler for orthophosphate

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The first known use of orthophosphate was in 1859

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Dictionary Entries Near orthophosphate

orthoperiodic acid


orthophosphoric acid

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Statistics for orthophosphate

Cite this Entry

“Orthophosphate.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/orthophosphate. Accessed 16 May. 2022.

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More Definitions for orthophosphate


or·​tho·​phos·​phate | \ ˌȯr-thə-ˈfäs-ˌfāt How to pronounce orthophosphate (audio) \

Medical Definition of orthophosphate

: a salt or ester of orthophosphoric acid


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