Define americium. americium synonyms, americium pronunciation, americium translation, English dictionary definition of americium. n. Symbol Am A white metallic transuranic element of the actinide series, having isotopes with mass numbers from 232 to 247.
The definition is from the "Taber's Cyclopedic Medical Dictionary," published by F.A. Davis Co. The pronunciation of the term is also provided.John Wiley & Sons, LtdVan Nostrand's Encyclopedia of Chemistrydoi:10.1002/0471740039.vec0144...
243.0614 FAMILY Actinide Transuranium element PRONUNCIATION am-uh-REE-see-um Americium was first produced in a nuclear reactor. A nuclear reactor is a device in which elements are bombarded by neutrons, sometimes forming new elements. The name, americium, in honor of the American continent, was ...