1
: of, relating to, or containing iron
2
: being or containing divalent iron
Examples of ferrous in a Sentence
Recent Examples on the Web
Total profits for smelting & pressing of non-ferrous metals across the country more than doubled to reach 142 billion yuan ($21 billion) in the first quarter, according to National Bureau of Statistics data released on Monday.
—
Bloomberg, 27 Apr. 2026
Requiring any copper, nickel or non-ferrous mining proposals have to show an example of a mine of this type opened in the United States for 10 years and then closed for 10 years that did not pollute the environment around it.
—Mary Murphy, Twin Cities, 17 Apr. 2026
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
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
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Bloomberg, 27 Apr. 2026
Requiring any copper, nickel or non-ferrous mining proposals have to show an example of a mine of this type opened in the United States for 10 years and then closed for 10 years that did not pollute the environment around it.
—Mary Murphy, Twin Cities, 17 Apr. 2026
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
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
See All Example Sentences for ferrous
Cite this Entry
“Ferrous.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ferrous. Accessed 3 May. 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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