yttrium

Từ điển Oxford Advanced Learner 8th

yt·trium 7 BrE [ˈɪtriəm] NAmE [ˈɪtriəm] noun uncountable (symb. Y)
a chemical element. Yttrium is a grey-white metal used in ↑magnets.

Word Origin:
[yttrium] early 19th cent.: modern Latin, from Ytterby, the name of a Swedish quarry where it was first found.

• Từ đồng nghĩa / Synonyms:
  Y, atomic number 39