Visual Encyclopedia

Stain

A stain is a discoloration that can be clearly distinguished from the surface, material, or medium it is found upon. They are caused by the chemical or physical interaction of two dissimilar materials. Staining is used for biochemical research, metal staining, and art (e.g., wood staining, stained glass).

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Laundry Stain Cheat Sheet! A great thing to have when you have a horrible stain in your clothing!

Contributed by Cassie Leyba

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