uindexunnilpentium./yoo-nil-pen-tee-uhm/US // ˌyu nɪlˈpɛn ti əm //奔腾不息,奔腾,奔腾号,奔腾不已Definitionsn.noun · 名词1. Chemistry, Physics.›a former name of dubnium. Symbol: UnpLevel 5More words in u →