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Related to ultrafilter: ultrafiltration


1. (Chemistry) a filter with small pores used to separate very small particles from a suspension or colloidal solution
2. (Tools) a filter with small pores used to separate very small particles from a suspension or colloidal solution
ultrafiltration n
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˌʌl trəˈfɪl tər)

1. a filter for purifying sols, having a membrane with pores sufficiently small to prevent the passage of the suspended particles.
2. to purify by means of an ultrafilter.
ul`tra•fil•tra′tion (-ˈtreɪ ʃən) n.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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References in periodicals archive ?
JTM has been so impressed with the benefits of the Tricanter that it plans to install an ultrafilter to further reduce the biological oxygen demand in the water.
It pertained to interactions between regulations and a technologically advanced product form, namely ultrafilter separation, which can reduce milk transportation and storage costs while enhancing processability and better meeting consumers' taste preferences.
Because of the potential for bacterial contamination, DI must be followed by an ultrafilter so the downstream components are not contaminated and patient safety is not compromised (AAMI, 2014e).
However, there is not one ultrafilter membrane that will do all of these tasks.
Sartorius Stedim Biotech's (SSB) single- use ultrafilter Sartocon Slice 50 is an encapsulated and ready-to-use crossflow module with a filter area of 50 cm2 and a wide variety of molecular weight cutoffs.
Sartorius Stedim Biotech's single-use ultrafilter Sartocon Slice 50 is designed for use in biotechnological applications, especially for membrane screening and small-volume process development.
We also subjected serum pools to centrifugal passage through a 10-kDa Centricon ultrafilter to obtain the low molecular weight fraction for NMR analysis.
Then, for each F [member of] [U.sup.s.sub.L](X), [F.sub.F] is an ultrafilter on X and [MATHEMATICAL EXPRESSION NOT REPRODUCIBLE IN ASCII].
A neutrosophic ultrafilter on a set X is a neutrosophic crisp filter [PSI] such that there is no neutrosophic crisp filter on X which is strictly finer than [PSI] (in other words, a maximal element in the ordered set of all neutrosophic crisp filters on X).