[ad. mod.L. filtrātum, f. filtrāre: cf. FILTER v. and -ATE1.] The liquor which has been passed through a filter.

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1845–6.  G. E. Day, trans. Simon’s Anim. Chem., II. 125. The lead contained in solution in the filtrate was separated by means of sulphuretted hydrogen.

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1875.  Darwin, Insectiv. Pl., vi. 89. The filtrate, which of course contained as much of the fibrin as had been digested during the four hours.

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