Dictionary
bi•met•al•lism
Pronunciation: (bī-met'l-iz"um), [key]—
n.
1. the use of two metals, ordinarily gold and silver, at a fixed relative value, as the monetary standard.
2. the doctrine or policies supporting such a standard.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.