ultrafiltration

noun

: filtration through a medium (such as a semipermeable capillary wall) which allows small molecules (as of water) to pass but holds back larger ones (as of protein)

Examples of ultrafiltration in a Sentence

Recent Examples on the Web
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This leads to the ultrafiltration of plasma (the liquid portion of blood) in the wound. Laura Schober, Health, 27 Dec. 2024 Depending on the type of filter, the barrier provides either microfiltration, ultrafiltration, or nanofiltration. Jeffrey Kluger, TIME, 9 Aug. 2024 Most leading nephrologists worldwide agree that dialysis should ideally be delivered in long, frequent sessions at low ultrafiltration rates, and be carefully tailored to each patient’s physiology. Tom Mueller, STAT, 25 Aug. 2023 This whey protein isolate is exceptionally high quality and uses cutting edge microfiltration and ultrafiltration membrane technology. Amber Smith, Discover Magazine, 12 Oct. 2022 See All Example Sentences for ultrafiltration

Word History

First Known Use

1908, in the meaning defined above

Time Traveler
The first known use of ultrafiltration was in 1908

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Cite this Entry

“Ultrafiltration.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ultrafiltration. Accessed 8 Jul. 2026.

Medical Definition

ultrafiltration

noun
: filtration through a medium (as a semipermeable capillary wall) which allows small molecules (as of water) to pass but holds back larger ones (as of protein)

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