STAIN

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 .

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stain

Noun

  1. A discoloured spot or area.
  2. A blemish on one's character or reputation.
  3. A substance used to soak into a surface and colour it.
  4. A reagent or dye used to stain microscope specimens so as to make some structures visible.

Verb

  1. To discolour something
    to stain the hand with dye
    armour stained with blood
  2. To taint or tarnish someone's character or reputation
  3. To coat a surface with a stain
    to stain wood with acids, coloured washes, paint rubbed in, etc.
    the stained glass used for church windows
  4. To treat a microscope specimen with a dye
  5. To cause to seem inferior or soiled by comparison.


The above text is a snippet from Wiktionary: stain
and as such is available under the Creative Commons Attribution/Share-Alike License.

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