A blemish on one's character or reputation.
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 substance used to soak into a surface and colour it.
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.
The act of winnowing
That which winnows or which is used in winnowing; a contrivance for fanning or winnowing grain.
To blow upon or toss about by blowing; to set in motion as with a fan or wings.
To separate, sift, analyse, or test by separating items having different values.
To subject (granular material, especially food grain) to a current of air separating heavier and lighter components, as grain from chaff.