verb lower in value by increasing the base-metal content.
— synonyms: debase
verb make an alloy of.
noun a mixture containing two or more metallic elements or metallic and nonmetallic elements usually fused together or dissolving into each other when molten.
— synonyms: metal
noun the state of impairing the quality or reducing the value of something.
— synonyms: admixture
Examples
“gold without alloy”
“to alloy gold with silver or copper, or silver with copper”