Capable of flowing out; able to emanate or be given off as an effluvium.
From 'effluvium' plus '-able' suffix meaning 'capable of.' This is an extremely rare theoretical formation, likely never used in actual historical texts.
This word is so obscure it may exist only in the minds of etymologists—there's probably no sentence in the entire history of English literature where someone wrote 'this is effluviable.'
Complete word intelligence in one call. Free tier — 50 lookups/day.