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.
For example, if your book contained 48,000 words, it would end up at approximately 160 total pages for a 5.5x8.5 size book. (48,000 words at 300 words per page = 160 5.5x8.5 finished pages). If you have photos or drawings, don't forget to include them in your page count.