filter paper (filterpa"per)

Porous paper designed to be used for filtering. filter-pre (filter-pres), n. 1. A filtering pre . Specifically - 2. An apparatus for the extraction of oil from fish, as menhaden, and the compre ion of the residuum into cakes. filter-pump (fil'ter-pump), п. An arrangement devised by the German chemist Bunsen, and much used by chemists to accelerate the filtering proce . The atmospheric pre ure is diminished in the ve el into which the filtered liquid pa es by the aspirating effect of a stream of water flowing through a connecting tube, and the full atmospheric pre ure on the surface of the liquid in the funnel forces the liquid through the pores of the filter-paper or other material.