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1
: of, relating to, or containing iron
2
: being or containing divalent iron
Examples of ferrous in a Sentence
Recent Examples on the Web
Fusion Lifestyle Iron Soft Chews provide you with 45 milligrams (250% Daily Value) of iron in the ferrous fumarate form, plus vitamin C to enhance absorption.
—Tamar Kane, Ms, Rd, Verywell Health, 16 July 2024
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
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Word History
Etymology
New Latin ferrosus, from Latin ferrum
First Known Use
1755, in the meaning defined at sense 1
Phrases Containing ferrous
Dictionary Entries Near ferrous
Cite this Entry
“Ferrous.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ferrous. Accessed 22 Nov. 2024.
Kids 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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