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supplementation

American  
[suhp-luh-men-tey-shuhn, -muhn-] / ˌsʌp lə mɛnˈteɪ ʃən, -mən- /

noun

  1. the act or process of supplementing.

  2. the state of being supplemented.

  3. something that supplements.


Etymology

Origin of supplementation

First recorded in 1850–55; supplement + -ation

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.

In the UK, vitamin D deficiency is relatively common, so supplementation is often advised.

From Science Daily • Jun. 25, 2026

The researchers note that phosphatidylcholine supplementation remained effective even when introduced during middle or advanced age.

From Science Daily • Jun. 11, 2026

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

Researchers found that collagen supplementation can provide measurable benefits for skin health and osteoarthritis symptoms, but offers little help when it comes to boosting sports performance.

From Science Daily • Jun. 5, 2026

Change of mind as to the essential contents of the message would involve supplementation or alteration of the written gospel employed.

From The Making of the New Testament by Bacon, Benjamin Wisner

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