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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.

He attempts to disguise this deficiency with endless boasting about himself and endless denigration of others.

From Salon • Mar. 28, 2026

"Most people with color vision deficiency are typically functioning fine. They don't have any other vision issues. Many affected individuals may not even know they have it," Rahimy said.

From Science Daily • Mar. 10, 2026

On Tuesday the FDA said it was in fact approving use of leucovorin for a rare condition called cerebral folate deficiency but not for autism.

From Barron's • Mar. 10, 2026

The Food and Drug Administration approved leucovorin, a drug the Trump administration has touted as a potential therapy for autism, to treat cerebral folate transport deficiency, a neurological disorder with some symptoms similar to autism.

From The Wall Street Journal • Mar. 10, 2026

A deficiency of these vitamins has been found to accompany mouth cancer and perhaps cancer of other sites in the digestive tract.

From "Silent Spring" by Rachel Carson