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ammonium hydroxide
noun
: a weakly basic compound NH4OH that is formed when ammonia dissolves in water and that exists only in solution
Examples of ammonium hydroxide in a Sentence
Recent Examples on the Web
Univar also stored chemicals next to each other that shouldn’t have been next to each other, like sulfuric acid next to potassium hydroxide and ammonium hydroxide and nitric acid next to potassium permanganate, ammonium persulfate, and hydrogen peroxide, according to the EPA’s allegations.
—Brian Amaral, BostonGlobe.com, 9 Jan. 2023
Yet when the researchers switched to using ammonium hydroxide vapors (which have a much higher pH), the cilia reverted to their original shape and color.
—Jeremy Jacquot, Discover Magazine, 24 Sep. 2010
The gas reacts with water in the meat to form a trace amount of ammonium hydroxide.
—Guest Blogger, Discover Magazine, 23 Mar. 2012
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Word History
First Known Use
1875, in the meaning defined above
Time Traveler
The first known use of ammonium hydroxide was
in 1875
Dictionary Entries Near ammonium hydroxide
Cite this Entry
“Ammonium hydroxide.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ammonium%20hydroxide. Accessed 25 Dec. 2024.
Kids Definition
ammonium hydroxide
noun
: a compound that is formed when ammonia dissolves in water and that exists only in solution
Medical Definition
ammonium hydroxide
noun
: a weakly basic compound NH4OH that is formed when ammonia dissolves in water and that exists only in solution
More from Merriam-Webster on ammonium hydroxide
Britannica.com: Encyclopedia article about ammonium hydroxide
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