Dictionary.com
Thesaurus.com

ammonium sulfate

American  

noun

Chemistry.
  1. a white, crystalline, water-soluble solid, (NH4 ) 2 SO 4 , used chiefly as a fertilizer.


ammonium sulfate Scientific  
  1. A brownish-gray to white crystalline salt used in fertilizers and water purification. Chemical formula: (NH 4 ) 2 SO 4 .


Etymology

Origin of ammonium sulfate

First recorded in 1800–85

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.

Growing even modest quantities of mycoprotein requires significant inputs, and the spores must be cultivated in large metal tanks filled with sugar-rich feedstock and added nutrients such as ammonium sulfate.

From Science Daily • Nov. 21, 2025

They are usually extracted by pumping large quantities of ammonium sulfate or a similar solution into the ground.

From Science Magazine • Nov. 1, 2022

The railroad says it also carries fertilizers, including phosphate, urea, ammonium sulfate, ammonium nitrate and anhydrous ammonia.

From Seattle Times • Mar. 20, 2022

So she and her colleagues mixed in ammonium sulfate or urea to add more nutrients, as well as compressing it into easier-to-manage pellets.

From Nature • Sep. 12, 2017

When added together, the two different molecules split apart and recombine as ammonium sulfate and iron nitrate.

From New York Times • Jun. 24, 2013

Vocabulary.com logo
by dictionary.com

Look it up. Learn it forever.

Remember "ammonium sulfate" for good with VocabTrainer. Expand your vocabulary effortlessly with personalized learning tools that adapt to your goals.

Take me to Vocabulary.com