n. The act or process of filtering; the mechanical separation of a liquid from the undissolved particles floating in it.
the GNU version of the Collaborative International Dictionary of English
n. The act or process of filtering; the mechanical separation of a liquid from the undissolved particles floating in it.
The Century Dictionary and Cyclopedia
n. The act or process of filtering; the process of mechanically separating and removing the undissolved particles floating in a liquid, as by passing the liquid through filtering-paper, charcoal, sand, etc. See filter.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. the process whereby fluids pass through a filter or a filtering medium
n. the act of changing a fluid by passing it through a filter
Word Usage
"I don't believe that run off filtration is kept to the same standards of drinking water."