Source : Webster's Revised Unabridged Dictionary (1913)

Filtrate \Fil"trate\, v. t. [imp. & p. p. {Filtrated}; p. pr. &
   vb. n. {Filtrating}. ] [Cf. LL. filtrare. See {Filter}.]
   To filter; to defecate; as liquid, by straining or
   percolation. --Arbuthnot.

Filtrate \Fil"trate\, n.
   That which has been filtered; the liquid which has passed
   through the filter in the process of filtration.

Source : WordNet®

filtrate
     n : the product of filtration; a gas or liquid that has been
         passed through a filter
     v : remove by passing through a filter; "filter out the
         impurities" [syn: {filter}, {strain}, {separate out}, {filter
         out}]