a metal of the gold, silver, or platinum group.
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for precious metal
Here then in Franklin county it is recorded that the last horse belonging to Coronado and his band of precious-metal hunters died.Collection of Nebraska Pioneer Reminiscences|Nebraska Society of the Daughters of the American Revolution
British Dictionary definitions for precious metal
any of the metals gold, silver, or platinum
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012