Definition of "filtration" []

• The act or process of filtering. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "I don't believe that run off filtration is kept to the same standards of drinking water."
• "And lest anyone think filtration is the answer, the last thing we need is the Water Bureau filtering our pristine water, like they are still planning, which will introduce a host of new chemical toxins."
• "There have been great advances in filtration technology and gravity separation and skimming."