ultra filtration
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noun
engineering filtration that removes particles less than 10 microns (10 –6 m) in diameter
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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How to use ultra filtration in a sentence
Ultrafiltration membranes remove more than 99 percent of bacteria, molds, and spores from drinking water, and can be used at home.
Medical definitions for ultra filtration
ultrafiltration
[ ŭl′trə-fĭl-trā′shən ]
n.
The filtration of a colloidal substance through a semipermeable medium that allows only small molecules through.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.