ammonia

noun

am·​mo·​nia ə-ˈmō-nyə How to pronounce ammonia (audio)
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 Earthjustice has also cited past incidents at the Santa Fe Springs facility in which ammonia and hydrochloric acid had been released at the site and workers had been burned with acid. Emily Alpert Reyes, Los Angeles Times, 9 Apr. 2024 New nonprofit to utilize AI to alleviate the global water crisis The top chemicals that were discharged into waterways were found to be nitrate compounds, manganese compounds and ammonia, the data shows. Julia Jacobo, ABC News, 16 Mar. 2024 Other research thrusts include ones based on powering planes with ammonia, hydrogen, or electricity. Amy Jankovsky, IEEE Spectrum, 30 Nov. 2023 The hazard — which was later identified by the OCFA as an ammonia leak — was reported shortly before 9:15 a.m., the OCFA told ABC News and CBS News in a statement. Kimberlee Speakman, Peoplemag, 14 Oct. 2023 In the new study, the team showed that lightning can’t make ammonia, methane, or nitrous oxide on its own, making those chemicals even more reliable signs of life. Popular Science, 7 Mar. 2024 In their gaseous phase, many natural and man-made molecules, including ammonia, carbon monoxide, hydrogen sulfide, and methanol, absorb photons when stimulated at terahertz frequencies, and those absorption bands can serve as chemical fingerprints. IEEE Spectrum, 7 Mar. 2024 The researchers point out that the absence of ammonia, which is highly soluble in water, is consistent with the presence of a surface ocean. Discover Magazine, 29 Feb. 2024 Here's how to tell the difference: Urine has a yellowish color and smells like ammonia, while amniotic fluid is usually odorless, says Brichter. Nicole Harris, Parents, 14 Mar. 2024

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'ammonia.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

Etymology

borrowed from New Latin, derivative based on Latin sal ammōniacus "rock salt," literally, "salt of Ammon," from ammōniacus "of Ammon," borrowed from Greek ammōniakós, derivative of Ámmōn, an Egyptian deity identified by the Greeks with Zeus, borrowed from Egyptian ỉmn; from its having been extracted near an oracle of Ammon near the Siwa oasis in Egypt

Note: The identification of sal ammoniac, not well described by ancient authors, as ammonium chloride was apparently part of medieval alchemical tradition.

First Known Use

1788, in the meaning defined at sense 1

Time Traveler
The first known use of ammonia was in 1788

Dictionary Entries Near ammonia

Cite this Entry

“Ammonia.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ammonia. Accessed 25 Apr. 2024.

Kids Definition

ammonia

noun
am·​mo·​nia ə-ˈmō-nyə How to pronounce ammonia (audio)
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
ˌam-ə-ˈnī-ə-kəl
adjective
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 How to pronounce ammonia (audio)
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

More from Merriam-Webster on ammonia

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