1. Physical Chemistry.
for purifying sols, having a membrane with pores sufficiently small to prevent the passage of the suspended particles.
in a topological space, having the property that no other filter
exists in the space having among its subsets all the subsets in the given filter
verb (used with object)
Physical Chemistry. to purify by means of an ultrafilter.
ul·tra·fil·tra·tion /ˌʌltrəfɪlˈtreɪʃən/ [uhl-truh-fil-trey-shuhn] Show IPA , noun