uindexununnilium./uhn-uh-nil-ee-uhm/US // ˌʌn əˈnɪl i əm //岫岩县,岫岩,无名氏,岫玉县Definitionsn.noun · 名词1. Chemistry, Physics.›former name of darmstadtium. Symbol: UunLevel 5More words in u →