—v.t. 1. to cause (a liquid) to pass through a porous body; filter.
2. (of a liquid) to filter through; permeate.
3. to brew (coffee) in a percolator.
—v.i. 1. to pass through a porous substance; filter; ooze; seep; trickle.
2. to become percolated: The coffee is starting to percolate. 3. to become active, lively, or spirited.
4. to show activity, movement, or life; grow or spread gradually; germinate: Interest in the idea has begun to percolate.