YTTRIUM


Meaning of YTTRIUM in English

[yt.tri.um] n [NL, fr. yttria yttrium oxide, irreg. fr. Ytterby, town in southern Sweden] (1822): a metallic element usu. included among the rare-earth metals which it resembles chemically and with which it usu. occurs in minerals

Merriam-Webster English vocab.      Английский словарь Merriam Webster.