• (n.) A silver coin of several countries of Europe, and of different values.
Duc`a·toon' noun [ French or Spanish ducaton , from ducat .] A silver coin of several countries of Europe, and of different values. 
A ducatoon was a former Dutch silver coin worth 3 gulden 3 stivers. There were coins of the same name in Italy.
a former silver coin of the Netherlands, used through the 17th and 18th centuries: equal to three gulden.