· a soiled or discolored appearance; "the wine left a dark stain"
Synonym(s): discoloration, discolouration
Hypernym(s): appearance, visual_aspect
· (microscopy) a dye or other coloring material that is used in microscopy to make structures visible
Hypernym(s): coloring_material, colouring_material, color, colour
· the state of being covered with unclean things
Synonym(s): dirt, filth, grime, soil, grease, grunge
Hypernym(s): dirtiness, uncleanness
· a symbol of disgrace or infamy; "And the Lord set a mark upon Cain"--Genesis
Synonym(s): mark, stigma, brand
Hypernym(s): symbol
· an act that brings discredit to the person who does it; "he made a huge blot on his copybook"
Synonym(s): blot, smear, smirch, spot
Hypernym(s): mistake, error, fault
· color with a liquid dye or tint; "Stain this table a beautiful walnut color"; "people knew how to stain glass a beautiful blue in the middle ages"
Hypernym(s): dye
· produce or leave stains; "Red wine stains the table cloth"
Hypernym(s): change, alter, modify
· make dirty or spotty, as by exposure to air; also used metaphorically; "The silver was tarnished by the long exposure to the air"; "Her reputation was sullied after the affair with a married man"
Synonym(s): tarnish, maculate, sully, defile
Hypernym(s): spot, fleck, blob, blot
· color for microscopic study; "The laboratory worker dyed the specimen"
Hypernym(s): dye