[ trahy-muh-tal-ik ]

  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.

Origin of trimetallic

First recorded in 1885–90; tri- + metallic

Words Nearby trimetallic Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023