A stain is an unwanted localized discoloration, often in fabrics or textiles.

Stain or Stains may also refer to:

  • Wood stain, a type of penetrative dye used to create a wanted color change in wood
  • Staining, in biology, a stain used to highlight features of tissue or cells
  • A stain (heraldry), or one of a few non-standard tinctures used in modern heraldry


"There are all kinds of interesting questions that come from a knowledge of science, which only adds to the excitement and mystery and awe of a flower."
Richard Feynman
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