A liquid that has been percolated.
To pass a liquid through a porous substance; to filter.
To make (coffee) in a percolator.
To drain or seep through a porous substance.
To spread slowly or gradually; to slowly become noticed or realised.
A substance used to soak into a surface and colour it.
A reagent or dye used to stain microscope specimens so as to make some structures visible.
A discoloured spot or area.
Any of a number of non-standard tinctures used in modern heraldry.
A blemish on one's character or reputation.
To cause to seem inferior or soiled by comparison.
To coat a surface with a stain
To treat (a microscopic specimen) with a dye, especially one that dyes specific features
To taint or tarnish someone's character or reputation
To discolour.
To become stained; to take a stain.