filtration

noun

Etymology: Etymology tree Proto-Indo-European *pel-der. Proto-Germanic *felląder. Proto-West Germanic *feltbor. Proto-Indo-European *-tḗr Proto-Indo-European *-trom Proto-Italic *-trom Latin -trum Latin filtrumlbor. French filtre Proto-Italic *-āzi ▲ Latin -ereinflu. Latin -āre Old French -ier Middle French -er French -er French filtrer Proto-Indo-European *-tis Proto-Indo-European *-Hō Proto-Indo-European *-tiHō Proto-Italic *-tiō Latin -tiō Latin -ātiōlbor. Old French -ation Middle French -ation French -ation French filtrationbor. English filtration Borrowed from French filtration.

1. The act or process of filtering; the mechanical separation of a liquid from the undissolved particles floating in it.
2. A totally ordered collection of subsets.