ammonium

noun
am·​mo·​ni·​um | \ ə-ˈmō-nē-əm How to pronounce ammonium (audio) \

Definition of ammonium

: an ion NH4+ derived from ammonia by combination with a hydrogen ion and known in compounds (such as salts) that resemble in properties the compounds of the alkali metals

Examples of ammonium in a Sentence

Recent Examples on the Web Those birds are genetically selecting to eat soy and corn, not to mention things like herbicides and ammonium. Simon Mainwaring, Forbes, 20 May 2021 Just burn some natural gas to create nitrogen-rich ammonium fertilizer. Erik Kobayashi-solomon, Forbes, 9 Apr. 2021 Dissolving them in salt water or ammonium sulfate solutions, and then precipitating them out with oxalic acid or ammonium bicarbonate – inexpensive chemicals – does the trick. Willy Shih, Forbes, 24 Feb. 2021 The explosion was caused by 3,000 tons of ammonium nitrates that had been stored in the port for six years before exploding. James Rogers, Fox News, 6 Oct. 2020 The catastrophic explosion, due to the detonation of nearly 3,000 tons of ammonium nitrates that had been stored for years in a port warehouse, decimated the country's main commercial facility and killed 193 people. Zeina Karam, Star Tribune, 27 Sep. 2020 Snee's chemical blenders then began working to develop a new combination of quaternary ammonium compounds that could be proven to kill SARS-CoV-2 and therefore be allowed by the EPA to label their product as such. Anthony Mcauley | Staff Writer, NOLA.com, 21 Aug. 2020 Earlier Tuesday, Lebanon’s interior minister said 2,700 tons of ammonium nitrite exploded in a warehouse in Port of Beirut after having been stored there for years. Fox News, 5 Aug. 2020 Ammonium nitrate, also called AN, is a compound of ammonium and nitrogen that is used in agricultural fertilizer and explosives. NBC News, 5 Aug. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'ammonium.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

See More

First Known Use of ammonium

1808, in the meaning defined above

History and Etymology for ammonium

New Latin, from ammonia

Keep scrolling for more

Learn More About ammonium

Time Traveler for ammonium

Time Traveler

The first known use of ammonium was in 1808

See more words from the same year

Statistics for ammonium

Last Updated

24 May 2021

Cite this Entry

“Ammonium.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ammonium. Accessed 16 Jun. 2021.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

Keep scrolling for more

More Definitions for ammonium

ammonium

noun
am·​mo·​ni·​um | \ ə-ˈmō-nē-əm How to pronounce ammonium (audio) \

Medical Definition of ammonium

: an ion NH4+ derived from ammonia by combination with a hydrogen ion and known in organic compounds (as quaternary ammonium compounds) and in compounds (as salts) that resemble in properties the compounds of the alkali metals

More from Merriam-Webster on ammonium

Britannica English: Translation of ammonium for Arabic Speakers

WORD OF THE DAY

Test Your Vocabulary

Name that Thing: Dog Breeds

How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

TAKE THE QUIZ
 AlphaBear 2

Spell words. Make bears.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!