To become stained; to take a stain.
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.
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.
To use a swab on something, or clean something with a swab.
A sailor; a swabby.
A naval officer's epaulet.
A small piece of soft, absorbent material, such as gauze, used to clean wounds, apply medicine, or take samples of body fluids. Often attached to a stick or wire to aid access.
A mop, especially on a ship.
A piece of material used for cleaning or sampling other items like musical instruments or guns.
A sample taken with a swab (piece of absorbent material).