ammonium

American  

[uh-moh-nee-uhm] / əˈmoʊ ni əm /

noun

Chemistry.

1. the univalent ion, NH 4 + , or group, NH 4 , which plays the part of a metal in the salt formed when ammonia reacts with an acid.

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ammonium British  

/ əˈməʊnɪəm, -njəm /

noun

1. (modifier) of, consisting of, or containing the monovalent group NH 4 – or the ion NH 4 ⁺

   ammonium compounds

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ammonium Scientific  

/ ə-mō′nē-əm /

1. A positively charged ion, NH ₄, derived from ammonia and found in a wide variety of organic and inorganic compounds. Compounds of ammonium chemically resemble the alkali metals.

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Etymology

Origin of ammonium

< New Latin; ammonia, -ium; coined by J. J. Berzelius in 1808

Compare meaning

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• ammonia vs. ammonium

Example Sentences

To create the effect, the team carefully adjusted the composition of the metal oxide by adding very small amounts of hydrogen and ammonium.

From Science Daily

They also observed that the gene linked to saxitoxin was less common in areas with elevated ammonium levels.

From Science Daily

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

Davis said six packages of ammonium nitrate were shipped from Park in Seattle to Bartkus.

From Los Angeles Times

That list includes ammonium nitrate, commonly available as a popular fertilizer at farm and garden stores.

From Los Angeles Times