stain - Hutchinson encyclopedia article about stain Printer Friendly
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stain

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stain

Coloured compound that will bind to other substances. Stains are used extensively in microbiology to colour micro-organisms, in histochemistry to detect the presence and whereabouts in plant and animal tissue of substances such as fats, cellulose, and proteins, and in biochemistry to reveal the location of biomolecules, as in gel electrophoresis.



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? Mentioned in ? References in classic literature
 
The stain of illegitimacy, unbleached by nobility or wealth, would have been a stain indeed.
And later, as she read aloud to him from "The Princess," he chanced to notice the stain of the cherries on her lips.
He had left his laboratory to the care of an assistant, cleared his fine countenance from the furnace smoke, washed the stain of acids from his fingers, and persuaded a beautiful woman to become his wife.
 
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