|1.||to mark or discolour with patches of something that dirties: the dress was stained with coffee|
|2.||to dye with a penetrating dyestuff or pigment|
|3.||to bring disgrace or shame on: to stain someone's honour|
|4.||to colour (specimens) for microscopic study by treatment with a dye or similar reagent|
|5.||(intr) to produce indelible marks or discoloration: does ink stain?|
|6.||a spot, mark, or discoloration|
|7.||a moral taint; blemish or slur|
|8.||a dye or similar reagent, used to colour specimens for microscopic study|
|9.||a solution or liquid used to penetrate the surface of a material, esp wood, and impart a rich colour without covering up the surface or grain|
|10.||any dye that is made into a solution and used to colour textiles and hides|
|[C14 steynen (vb), shortened from disteynen to remove colour from, from Old French desteindre to discolour, from des-|
A reagent or dye that is used for staining microscopic specimens.
A procedure in which a dye or a combination of dyes and reagents is used to color the constituents of cells and tissues.