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filmstrip
filmy
filmy fern
filo
Filofax
fils (1)
fils (2)
filter
filter bed
filter cake
filter coffee
filter feeder
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filter tip
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filter bed
fil·ter bed (plural fil·ter beds)


noun 
Definition:
 
layer to filter water: a thick layer of gravel, charcoal, or other filtering material in a tank, used to remove sewage or other impurities from liquids
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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