Capable of being filtered; alternative spelling of filtrable, meaning able to be strained or purified through a filter.
From filtrate (verb form of filter, from Latin filtrare) + -able (from Latin -abilis). This variant spelling with -atable is less common than filtrable but follows the same Latin root pattern.
Filtrable and filtratable mean the same thing, but filtrable is the more common scientific term—this shows how English sometimes offers variant spellings, and the scientific community gradually standardized on one!
Complete word intelligence in one call. Free tier — 50 lookups/day.