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ONAD→ultrafiltration

ultrafiltration

Flag: gbEnglishOxford New American Dictionary
ultrafiltration /ˌəltrəfilˈtrāSH(ə)n, ˌəltrəfɪlˈtreɪʃ(ə)n /
▸ noun filtration using a medium fine enough to retain colloidal particles, viruses, or large molecules.
– DERIVATIVES
ultrafilter /ˈəltrəˌfiltər/ noun & verb