nitratocuprate

As an initialism salt

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As a noun nitratocuprate is

(inorganic chemistry) any of several anions of general formula cu(no₃)_m^n-; any salt containing such an anion.

As nouns the difference between anion and nitratocuprate

is that anion is a negatively charged ion while nitratocuprate is any of several anions of general formula Cu(NO₃)_m^n-; any salt containing such an anion.