zircaloy Syllabification: (zir·ca·loy)Pronunciation: /ˈzərkəˌloi/Definition of zircaloy noun an alloy of zirconium, tin, and other metals, used chiefly as cladding for nuclear reactor fuel. Origin: 1950s: from zirconium + alloyzircaloy in other Oxford dictionaries Definition of zircaloy in the British & World English dictionary
