noun
: silver containing three alloying elements and used for coinage
former British coinage of quaternary silver containing 50 percent silver, 40 percent copper, 5 percent nickel, and 5 percent zinc
noun
: silver containing three alloying elements and used for coinage
former British coinage of quaternary silver containing 50 percent silver, 40 percent copper, 5 percent nickel, and 5 percent zinc
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012