1
: of, relating to, or containing iron
2
: being or containing divalent iron
Examples of ferrous in a Sentence
Recent Examples on the Web
There are also chemical moss killing sprays that contain iron sulfate (ferrous ammonium sulfate) that should be applied following product label directions.
—
Mary Marlowe Leverette, Southern Living, 13 Mar. 2026
Dong said higher global non-ferrous metal and crude oil prices drove month-on-month increases in costs across several industries, including gas and petroleum extraction.
—Bloomberg News, Bloomberg, 9 Mar. 2026
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
Vitamin C can create a more acidic environment in the stomach and prevent the oxidation of ferrous iron to ferric iron.
—Ayesha Gulzar, Verywell Health, 14 Jan. 2026
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Mary Marlowe Leverette, Southern Living, 13 Mar. 2026
Dong said higher global non-ferrous metal and crude oil prices drove month-on-month increases in costs across several industries, including gas and petroleum extraction.
—Bloomberg News, Bloomberg, 9 Mar. 2026
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
Vitamin C can create a more acidic environment in the stomach and prevent the oxidation of ferrous iron to ferric iron.
—Ayesha Gulzar, Verywell Health, 14 Jan. 2026
See All Example Sentences for ferrous
Cite this Entry
“Ferrous.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ferrous. Accessed 21 Mar. 2026.
Copy CitationKids Definition
ferrous
adjective
fer·rous
ˈfer-əs 
: of, relating to, or containing iron
Medical Definition
ferrous
adjective
fer·rous
ˈfer-əs
1
: of, relating to, or containing iron
2
: being or containing iron with a valence of two
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