Definition of "percolate"

(transitive) To pass a liquid through a porous substance; to filter.  examples

(intransitive) To drain or seep through a porous substance.  examples

(transitive) To make (coffee) in a percolator.  examples

(intransitive, figuratively) To spread slowly or gradually; to slowly become noticed or realised.  examples

(rare) A liquid that has been percolated.