ammonium sulfate

noun

: a colorless crystalline salt (NH4)2SO4 used chiefly as a fertilizer

Examples of ammonium sulfate in a Sentence

Recent Examples on the Web
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That ammonia is then captured as ammonium sulfate, a common fertilizer. Aamir Khollam, Interesting Engineering, 19 Aug. 2025 In the new study, researchers cultivated the fungus in an ammonium sulfate-rich environment to stimulate it to produce sulfated polysaccharide (SPS) molecules. New Atlas, 15 Aug. 2025 For each application, apply a nitrogen fertilizer such as ammonium sulfate or bloodmeal in a foot-wide circle around each plant according to label rates. Kim Toscano, Southern Living, 20 Jan. 2025 Metroplex recommendations, however, suggest less phosphorus (middle number of the analysis) or even all nitrogen such as ammonium sulfate applied to our alkaline black clay gumbo soils. Neil Sperry, Fort Worth Star-Telegram, 17 Jan. 2025 Typically, the solution used is ammonium sulfate. John Timmer, Ars Technica, 3 Nov. 2022 They are usually extracted by pumping large quantities of ammonium sulfate or a similar solution into the ground. Bydennis Normile, science.org, 1 Nov. 2022 The ReencleMicrobe mix at the heart of this process contains rice husks, vermiculite, nonpathogenic bacillus bacteria, ammonium sulfate, and wood pellets, according to the company. Richard Baguley, Wired, 31 Mar. 2022 For example, ammonium sulfate is usually sold as 21-0-0 (sometimes as 20-0-0). oregonlive, 29 Jan. 2022

Word History

First Known Use

1866, in the meaning defined above

Time Traveler
The first known use of ammonium sulfate was in 1866

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Cite this Entry

“Ammonium sulfate.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ammonium%20sulfate. Accessed 9 Sep. 2025.

Kids Definition

ammonium sulfate

noun
: a colorless crystalline salt used chiefly as a fertilizer

Medical Definition

ammonium sulfate

noun
: a colorless crystalline salt (NH4)2SO4 used as a fertilizer and in medicine as a local analgesic

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