UVANITE Meaning of UVANITE in English ˈyüvəˌnīt noun( -s )Etymology: u ranium + van adium + -ite : a hydrous uranium vanadate U 2 V 6 O 21 .15H 2 O occurring as a brownish yellow powder Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012