ferritin
noun
fer·ri·tin
ˈfer-ə-tən 
: a crystalline iron-containing protein that functions in the storage of iron and is found especially in the liver and spleen
Examples of ferritin in a Sentence
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More recent research published in The Lancet Global Health found that iron stores begin depleting at ferritin levels around 40-50, meaning a woman can feel genuinely terrible at a ferritin of 20 and still be told everything is fine.
—
Allison Palmer, Charlotte Observer, 20 Mar. 2026
The standard threshold to flag iron deficiency is a ferritin level below 15 micrograms per liter, based on a single study from the 1990s.
—Allison Palmer, Sacbee.com, 20 Mar. 2026
More recent research published in The Lancet Global Health found that iron stores start depleting at ferritin levels around 40-50, meaning a woman can feel genuinely terrible at a ferritin of 20 and still be told everything is fine.
—Allison Palmer, Miami Herald, 19 Mar. 2026
Iron levels: Vitamin C can help iron absorption and ferritin levels when consumed alongside iron-rich foods.
—Cory Martin, Verywell Health, 21 Jan. 2026
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Allison Palmer, Charlotte Observer, 20 Mar. 2026
The standard threshold to flag iron deficiency is a ferritin level below 15 micrograms per liter, based on a single study from the 1990s.
—Allison Palmer, Sacbee.com, 20 Mar. 2026
More recent research published in The Lancet Global Health found that iron stores start depleting at ferritin levels around 40-50, meaning a woman can feel genuinely terrible at a ferritin of 20 and still be told everything is fine.
—Allison Palmer, Miami Herald, 19 Mar. 2026
Iron levels: Vitamin C can help iron absorption and ferritin levels when consumed alongside iron-rich foods.
—Cory Martin, Verywell Health, 21 Jan. 2026
See All Example Sentences for ferritin
Cite this Entry
“Ferritin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ferritin. Accessed 7 Apr. 2026.
Copy CitationMedical Definition
ferritin
noun
fer·ri·tin
ˈfer-ət-ən
: a crystalline iron-containing protein that functions in the storage of iron and is found especially in the liver and spleen compare hemosiderin
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