To make morbid, carious, or gangrenous.
To corrupt; to make foul.
To become filled with a pus-like or bile-like substance.
To reach an advanced stage of decomposition.
To become gangrenous.
To taint or tarnish someone'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 discolour.
To become stained; to take a stain.
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.
A substance used to soak into a surface and colour it.