Also found in: Medical, Encyclopedia, Wikipedia.
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
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
ul•tra•fil•ter(ˌʌl trəˈfɪl tər)
1. a filter for purifying sols, having a membrane with pores sufficiently small to prevent the passage of the suspended particles.v.t.
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.