ferric

adjective

fer·​ric ˈfer-ik How to pronounce ferric (audio)
ˈfe-rik
1
: of, relating to, or containing iron
2
: being or containing iron usually with a valence of three

Examples of ferric in a Sentence

Recent Examples on the Web
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Other forms of iron in iron supplements include heme iron polypeptides (HIP), carbonyl iron, iron amino-acid chelates, and polysaccharide-iron complexes (PIC), which have fewer gastrointestinal side effects when compared to the ferric and ferrous salts. Bestreviews, Mercury News, 4 Feb. 2026 To everyone’s surprise, the team discovered that Geobacter could oxidize organic compounds while reducing ferric iron, converting it to ferrous iron in the process. Scott Travers, Forbes.com, 11 Jan. 2026 To understand how ferric iron forms on the moon, the researchers examined several possible mechanisms and ruled out some alternatives. Bojan Stojkovski, Interesting Engineering, 16 Nov. 2025 The village was surrounded by ferric dunes, which have iron filings in the sand, their rust color produced by metal oxidized by wind and time. Aatish Taseer, Travel + Leisure, 13 Oct. 2025 Ferrous salts, including ferrous gluconate, glycinate, and sulfate, are absorbed more effectively than ferric salts and are the preferred option. Jessica Swirble, Verywell Health, 3 Sep. 2025 Using data gathered by Mars orbiters, Bishop and her team studied sites with an odd spectral signature — that of an iron-bearing mineral called a ferric hydroxysulfate. Julian Dossett, Space.com, 8 Aug. 2025

Word History

First Known Use

1799, in the meaning defined at sense 1

Time Traveler
The first known use of ferric was in 1799

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Cite this Entry

“Ferric.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ferric. Accessed 6 Jul. 2026.

Kids Definition

ferric

adjective
fer·​ric ˈfer-ik How to pronounce ferric (audio)
: of, relating to, or containing iron

Medical Definition

ferric

adjective
fer·​ric ˈfer-ik How to pronounce ferric (audio)
1
: of, relating to, or containing iron
2
: being or containing iron usually with a valence of three

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