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ultrafilter
ultrafilter (ˌʌltrəˈfɪltə) n1. (Chemistry) a filter with small pores used to separate very small particles from a suspension or colloidal solution2. (Tools) a filter with small pores used to separate very small particles from a suspension or colloidal solution ultrafiltration nul•tra•fil•ter (ˌʌl trəˈfɪl tər)
n. 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. [1905–10] ul`tra•fil•tra′tion (-ˈtreɪ ʃən) n. ultrafilter
ultrafilter[¦əl·trə′fil·tər] (mathematics) A filter base which has no properly subordinated filter base. ultrafilter
ultrafilter [ul″trah-fil´ter] the filter used in ultrafiltration.ul·tra·fil·ter (ŭl'tră-fil'tĕr), A semipermeable membrane (collodion, fish bladder, or filter paper impregnated with gels) used as a filter to separate colloids and large molecules from water and small molecules, which pass through. |