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non·fil·ter·able | \ ˌnän-ˈfil-t(ə-)rə-bəl 
\
\Definition of nonfilterable
: not filterable:
a : not capable of passing through a filter a thick, nonfilterable liquid
b : not able to be removed by a filter
nonfilterable residue
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Time Traveler for nonfilterable
The first known use of nonfilterable was in 1894
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