pot metal

noun
  1. an alloy of copper and lead, formerly used for making plumbing fixtures, bearings, etc.
  2. cast iron of a quality suitable for making pots.
  3. a low-grade nonferrous alloy used for die casting.
  4. Glassmaking.
    1. glass colored by being mixed with stained glass during fusion.
    2. glass melted in a pot.

Origin of pot metal

First recorded in 1685–95
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for pot metal

Historical Examples of pot metal