1
: of, relating to, or containing iron
2
: being or containing divalent iron
Examples of ferrous in a Sentence
Recent Examples on the Web
These include sodium carbonate, ferrous, sodium hydrogen, sulfur, salt and hydrogen sulfide springs.
—
Tribune News Service, The Mercury News, 9 Oct. 2024
Other forms of iron, like ferrous sulfate and ferrous fumarate, are not as gentle and may cause stomach issues for some.
—Tamar Kane, Ms, Rd, Verywell Health, 16 July 2024
So, in a companion study to the patch one, the same researchers had a third group of 16 runners take the same 325-milligram dose of ferrous sulphate every second day and compared their results to the pill-every-day group from the patch study.
—Alex Hutchinson, Outside Online, 8 July 2020
The supplement contains a form of iron called ferrous gluconate, which is less bioavailable.
—Casey Seiden, Parents, 26 Feb. 2024
See all Example Sentences for ferrous 
Tribune News Service, The Mercury News, 9 Oct. 2024
Other forms of iron, like ferrous sulfate and ferrous fumarate, are not as gentle and may cause stomach issues for some.
—Tamar Kane, Ms, Rd, Verywell Health, 16 July 2024
So, in a companion study to the patch one, the same researchers had a third group of 16 runners take the same 325-milligram dose of ferrous sulphate every second day and compared their results to the pill-every-day group from the patch study.
—Alex Hutchinson, Outside Online, 8 July 2020
The supplement contains a form of iron called ferrous gluconate, which is less bioavailable.
—Casey Seiden, Parents, 26 Feb. 2024
See all Example Sentences for ferrous
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'ferrous.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
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Cite this Entry
“Ferrous.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ferrous. Accessed 22 Oct. 2024.
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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