Dictionary
fol•lis
Pronunciation: (fol'is), [key]—
n.,
—pl. fol•lesPronunciation: (fol'ēz). [key]
1. a bag of copper or bronze coins with a fixed weight, used as money of account in the later Roman Empire.
2. a silver-plated copper coin of ancient Rome, first issued by Diocletian.
3. a copper coin of the Eastern Roman Empire, a.d. c500.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.