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polymetallism
polymetallism n. 
/ˌpɒlɪˈmɛtl̩ɪz(ə)m/,
Brit. /ˌpɒlɪˈmɛtəlɪz(ə)m/
, /ˌpɒlɪˈmɛtəlɪz(ə)m//ˌpɒlɪˈmɛtl̩ɪz(ə)m/U.S. /ˌpɑliˈmɛdlˌɪz(ə)m/
[after bimetallism n.] the use of several different metals, esp. for coinage./ˌpɑliˈmɛdlˌɪz(ə)m/ΘΚΠ
society > trade and finance > money > medium of exchange or currency > [noun] > currency systems and policies
decimal currency1824
bimetallism1876
monometallism1878
free silver1889
polymetallism1890
silverism1895
symmetallism1895
trimetallism1897
managed currency1898
single currency1900
compensated dollar1912
commodity dollar1918
soft currency1940
1890 Times 20 Jan. 10/2 Polymetallism is the thing to go for in that case.
1973 Science 30 Nov. 879/3 I will briefly describe..early copper metallurgy, before turning to polymetallism and metallurgy generally.
2001 Jrnl. Planar Chromatography 14 426 Knowledge of the composition of an incorporated alloy is a precondition for avoiding polymetallism in subsequent prosthetic treatment.
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