A traditional unit of quantity equal to 10. The word is an English version of the Latin word for ten, decem. After centuries of use, especially by traders in furs and skins, the dicker has nearly disappeared from the English language
Russ Rowlett (Director), How Many? A Dictionary of Units of Measurement, Center for Mathematics and Science Education University of North Carolina, USA 2005. http://www.unc.edu/~rowlett/units/dictA.html, (Unit of Meas and Covr Factors - Amer) {608}