Meaning of ducatoon

duc•a•toon

Pronunciation: (duk'u-tn", duk"u-tn'), [key]
— n.
  1. a former silver coin of the Netherlands, used through the 17th and 18th centuries: equal to three gulden.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.