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Definitions

deficiency

[dih-fish-uhn-see] / dɪˈfɪʃ ən si /


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The drug was approved to treat lipoprotein lipase deficiency, a rare genetic disorder that prevents the body from properly breaking down fat particles in the blood.

From Barron's • Jun. 17, 2026

The result is a condition that resembles DNA repair deficiency, even in cancer cells that had previously regained their repair capabilities.

From Science Daily • Jun. 10, 2026

But B12 deficiency should be considered before folate is prescribed on its own, because folate can improve some blood signs of B12 deficiency while nerve damage continues.

From Science Daily • Jun. 6, 2026

This is why B12 deficiency is taken seriously.

From Science Daily • May 27, 2026

A likely reason for the failure of cereal agriculture to arise in New Guinea is a glaring deficiency of the wild starting material: not one of the world’s 56 largest-seeded wild grasses is native there.

From "Guns, Germs, and Steel: The Fates of Human Societies" by Jared M. Diamond




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