alloy

Noun

• the state of impairing the quality or reducing the value of something

• a mixture containing two or more metallic elements or metallic and nonmetallic elements usually fused together or dissolving into each other when molten
  • brass is an alloy of zinc and copper
    

Verb

• make an alloy of

• lower in value by increasing the base-metal content

Related words

• Synonyms: 
  admixture , metal , debase