1
: a pungent colorless gaseous alkaline compound of nitrogen and hydrogen NH3 that is very soluble in water and can easily be condensed to a liquid by cold and pressure
2
Examples of ammonia in a Sentence
Recent Examples on the Web
An ammonia leak occurred at the JSC Apatit plant, leaving three people injured, the mining and chemical company told Russian broadcaster RenTV.
—
Newsweek Staff, MSNBC Newsweek, 4 Apr. 2025
The Hubble Space Telescope discovered water vapor in K2-18b's atmosphere in 2019, and JWST has detected the presence of carbon dioxide and methane in the planet's atmosphere, along with a lack of carbon monoxide and ammonia — exactly as predicted by the hycean planet hypothesis.
—Paul Sutter, Space.com, 23 Mar. 2025
Hydrogen also has potential as a vehicle fuel, especially for heavy-duty trucks, though right now most of the 10 million metric tons used in the U.S. annually is for oil refining and ammonia production.
—Alan Ohnsman, Forbes, 10 Mar. 2025
To do so, the telescope will map out the presence of water ice, of course, as well as frozen carbon dioxide, methanol, ammonia and other intriguing compounds.
—Meghan Bartels, Scientific American, 28 Feb. 2025
See All Example Sentences for ammonia
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Newsweek Staff, MSNBC Newsweek, 4 Apr. 2025
The Hubble Space Telescope discovered water vapor in K2-18b's atmosphere in 2019, and JWST has detected the presence of carbon dioxide and methane in the planet's atmosphere, along with a lack of carbon monoxide and ammonia — exactly as predicted by the hycean planet hypothesis.
—Paul Sutter, Space.com, 23 Mar. 2025
Hydrogen also has potential as a vehicle fuel, especially for heavy-duty trucks, though right now most of the 10 million metric tons used in the U.S. annually is for oil refining and ammonia production.
—Alan Ohnsman, Forbes, 10 Mar. 2025
To do so, the telescope will map out the presence of water ice, of course, as well as frozen carbon dioxide, methanol, ammonia and other intriguing compounds.
—Meghan Bartels, Scientific American, 28 Feb. 2025
See All Example Sentences for ammonia
Cite this Entry
“Ammonia.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ammonia. Accessed 23 Apr. 2025.
Copy CitationKids Definition
ammonia
noun
am·mo·nia
ə-ˈmō-nyə 
1
: a colorless gas that is a compound of nitrogen and hydrogen, has a sharp smell and taste, is easily dissolved in water, can easily be made a liquid by cold and pressure, is used to make ice, fertilizers, and explosives, and is the chief nitrogen-containing waste product of many organisms that live in water
2
: a solution of ammonia in water
ammoniacal
adjective
ˌam-ə-ˈnī-ə-kəl
Etymology
from Latin sal ammoniacus "ammonium chloride," literally "salt of Ammon," named for the Egyptian god Ammon near whose temple the salt was extracted
Medical Definition
ammonia
noun
am·mo·nia
ə-ˈmō-nyə
1
: a pungent colorless gaseous alkaline compound of nitrogen and hydrogen NH3 that is very soluble in water and can easily be condensed to a liquid by cold and pressure
2
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