Medical Dictionary

1filter

noun fil·ter \ˈfil-tər\

Medical Definition of FILTER

1
:  a porous article or mass (as of paper or sand) through which a gas or liquid is passed to separate out matter in suspension
2
:  an apparatus containing a filter medium
3
a :  a device or material for suppressing or minimizing waves or oscillations of certain frequencies (as of electricity, light, or sound) b :  a transparent material (as colored glass) that absorbs light of certain wavelengths or colors selectively and is used for modifying light that reaches a sensitized photographic material—called also color filter
May 24, 2015
erudite Hear it
learned or pedantic
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