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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.

A large trial found that vitamin D supplementation did not significantly reduce fracture risk in generally healthy midlife and older adults who were not selected for deficiency.

From Science Daily • Jun. 6, 2026

Iron should not be taken without confirmed deficiency unless advised by a healthcare professional.

From Science Daily • Jun. 6, 2026

The researchers found that protein deficiency increased attraction to protein-related nutrients while simultaneously reducing interest in sugar.

From Science Daily • May 28, 2026

Iron deficiency anemia is especially common among pregnant women and adolescent girls in many developing countries.

From Science Daily • May 27, 2026

Possible reasons lie beyond the scope of this discussion, except to note that this in no way implies some deficiency in Egyptian genius or language.

From "Circumference" by Nicholas Nicastro




Vocabulary lists containing deficiency


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