base bullion

noun

, Metallurgy.

1. smelted lead containing impurities, as gold, silver, or zinc, that are later removed.

Example Sentences

In the United States the cost of desilverizing a ton base bullion is about $6.

From Project Gutenberg

The ingot was handed round, and all the clerks saw that indeed it was base bullion.

From Project Gutenberg

It was obvious that the ingot was base bullion, and on the face of the affair there was clear proof that the Tartar had sold it.

From Project Gutenberg