Filtrar

v. filter, filtrate, percolate

v. filtrate, leach; percolate, purify

= filter (out), winnow, strain.
Ex: Central libraries are an important part of the interlending system and by ensuring regional utilisation of public library resources and thus filtering requests they protect research libraries.
Ex: Not only are entries weeded in order to be subject-specific, but those weeded entries are winnowed even further so that only useful information is left.
Ex: Sampling for immature stages of mosquito was done weekly between May 1999 and January 2000 by straining them from the water in ravines and gutters.
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* filtrar el acceso = filter + access.
* filtrar + Información = leak + Información.
* filtrarse = seep through, percolate, seep into, seep.

Filter, strain

Air filter