ferritin

American  

[fer-i-tn] / ˈfɛr ɪ tn /

noun

Biochemistry.

1. an amber-colored, crystalline protein, found in the liver, spleen, and bone marrow, that consists of apoferritin combined with a ferric hydroxide-ferric phosphate complex and that stores iron for use in metabolism.

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ferritin British  

/ ˈfɛrɪtɪn /

noun

1. biochem a protein that contains iron and plays a part in the storage of iron in the body. It occurs in the liver and spleen

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Etymology

Origin of ferritin

First recorded in 1935–40; ferrite + -in ²

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Example Sentences

See Examples For:

ferritin

Your ferritin levels show how good your body's iron stores are, while haemoglobin is the protein in red blood cells which carries oxygen.

From BBC ● Oct. 26, 2026

After being told her blood tests were normal and being diagnosed with generalised anxiety disorder, a later test showed her ferritin was 12 micrograms per litre.

From BBC ● Oct. 26, 2026

Is it just me or is everyone suddenly talking about their low ferritin levels?

From The Wall Street Journal ● Oct. 23, 2026

On social media, I’m seeing posts like “low ferritin girlies unite” or “supplements that got my ferritin up” or “my ferritin is at a 9.”

From The Wall Street Journal ● Oct. 23, 2026

In contrast, a vaccine based on a scaffold protein called ferritin, coated with SARS-CoV-2 antigens, generated many antibodies against ferritin as well as SARS-CoV-2.

From Science Daily ● Jan. 30, 2024

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