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trimetallic

[ trahy-muh-tal-ik ]

adjective

  1. of three metals.
  2. Engraving. (of an offset plate) consisting of a face layer of chromium, stainless steel, or chemically prepared aluminum over a layer of copper with a strengthening backup layer of steel or other metal.


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Word History and Origins

Origin of trimetallic1

First recorded in 1885–90; tri- + metallic

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