Porous is a term used to describe something that has many small holes or openings, allowing liquids or gases to pass through. The crossword solutions for this term include 'LEAKY' (5 letters), 'PERVIOUS' (8 letters), 'PERMEABLE' (9 letters), 'leachy' (6 letters), 'SPONGY' (6 letters), 'OPEN' (4 letters), 'PENETRABLE' (10 letters), and 'cellular' (8 letters). All of these words describe something that is porous, meaning it has many small openings or pores that allow liquids or gases to pass through.