from The American Heritage® Dictionary of the English Language, 4th Edition

  • transitive v. To put or go through a filter.
  • n. Material, especially liquid, that has passed through a filter.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The liquid or solution that has passed through a filter, and which has been separated from the filtride.
  • v. To filter.

from the GNU version of the Collaborative International Dictionary of English

  • n. That which has been filtered; the liquid which has passed through the filter in the process of filtration. Contrasted with retentate, the material remaining on the filter.
  • transitive v. To filter; to defecate; as liquid, by straining or percolation.

from The Century Dictionary and Cyclopedia

  • To filter; defecate, as liquor, by straining or percolation: also used figuratively.
  • n. The liquid which has been passed through a filter.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • v. remove by passing through a filter
  • n. the product of filtration; a gas or liquid that has been passed through a filter


from The American Heritage® Dictionary of the English Language, 4th Edition

New Latin filtrāre, filtrāt-, to filter, from Medieval Latin filtrum, filter; see filter.


  • The clear filtrate is concentrated in vacuo to about 1/15 of its original volume.

    Frederick G. Banting - Nobel Lecture

  • The filtrate is practically neutralized with NaOH.

    Frederick G. Banting - Nobel Lecture

  • If dried starch grains are rubbed between two glass plates, the grains will be seen under the microscope to be fissured, and if then wetted and filtered, the filtrate will be a perfectly clear liquid showing a strong starch reaction with iodine.

    Scientific American Supplement, No. 458, October 11, 1884

  • The alumina is contained in the filtrate, which is acidified with hydrochloric acid and the alumina precipitated therefrom as hydrate with ammonia, as just described.

    A Text-book of Assaying: For the Use of Those Connected with Mines.

  • Shuttling tumors from one bird to another, he began to pass the cells through a set of filters, a series of finer and finer cellular sieves, until the cells had been eliminated from the mix and all that was left was the filtrate derived from the cells.

    The Emperor of All Maladies

  • Raw water flows along the length of the hollow fibres before being forced through the walls of the fibre to produce a filtrate virtually free of suspended solids.

    Siemens' New Technology To Rid Nigeria Of Water-borne Diseases

  • In an independent experimental study of mumps, Wollstein used saliva filtrate from sick children and from soldiers in Army camp hospitals near New York City.

    Martha Wollstein.

  • The vaccine is a cell-free filtrate vaccine, which means it contains no dead or live bacteria in the preparation.


  • One objection: that terrorists could in-filtrate an anonymous market and profit by betting on their own future acts of murder.

    Reading the Tea Leaves

  • And so the capillaries are supposed to keep the blood in as the gas exchange takes place, but if the capillaries get a little leaky, it ` s-- imagine that it ` s basically a filtrate.

    CNN Transcript Jan 7, 2008


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