The noun FILTRATION has 2 senses: 1. the process whereby fluids pass through a filter or a filtering medium. 2. the act of changing a fluid by passing it through a filter. Familiarity information: FILTRATION used as a noun is rare.
A sentence averages eleven words; an A4 / letter size sheet averages 32 to 35 sentences. A normal size sheet of paper with a standard layout, based on 80% - 90% coverage contains about 350 to 400 words.
Therefore, the editor has to think in terms of number of pages, not the number of words.. Blair Bancroft: Word Count http://www.blairbancroft.com/word_count.htm Word count: based on 25 lines per page in Courier New 12 pt. averages approximately 250 words per page.