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It deals with science, and yes, it lends itself to Scrabble…

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dopant

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For more use the DOOR…

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   dopant – (n.) a material [a chemical element or compound] injected into crystals to increase their electrical or optical abilities. Example: Injecting chromium [an element] into aluminum oxide [not iron oxide or "rust"] to make a ruby, giving it its color and making it useful for lasers.

 

   And it’s this sort of thing that can put metal into silicon compounds to make very tiny electrical circuits.