单词	berkelium
释义	berkelium noun berke·​li·​um ˈbər-klē-əm  : a radioactive metallic element produced artificially (as by bombarding americium 241 with alpha particles) see Chemical Elements Table Word History Etymology New Latin, from Berkeley, California First Known Use 1950, in the meaning defined above Medical Definition berkelium noun berke·​li·​um ˈbər-klē-əm  : a radioactive metallic element produced by bombarding americium 241 with helium ions —symbol Bk see Chemical Elements Table
随便看	reflexivenesses reflexives reflexivities reflexivity reflexlier reflexliest reflexly reflexness reflexologic reflexologically reflexologies reflexologist reflexologists reflexology reflexxer reflexxest reflies refloat refloated refloating refloats reflooded reflooding refloods reflorescence

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