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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.

B12 is clearly essential for the nervous system, and deficiency should not be ignored.

From Science Daily • May 22, 2026

A 2025 comprehensive review concluded that B12 deficiency remains a modifiable risk factor for neurological and cognitive problems, especially in high risk groups such as older adults and vegetarians.

From Science Daily • May 22, 2026

"Revisiting the definition of B12 deficiency to incorporate functional biomarkers could lead to earlier intervention and prevention of cognitive decline."

From Science Daily • May 22, 2026

They do, however, suggest that the current definition of B12 deficiency may be too blunt for brain health.

From Science Daily • May 22, 2026

I liked this idea: that peculiarness wasn’t a deficiency, but an abundance; that it wasn’t we who lacked something normals had, but they who lacked peculiarness.

From "Hollow City" by Ransom Riggs




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