最終更新日：2024/07/28

Dictionary quizzes to help you remember vocabulary

(uncountable) A chemical element (symbol Ir) with an atomic number of 77: a very hard, brittle, silvery-white transition metal of the platinum group. / (countable) A single atom of this element.

正解を見る

iridium

問題を編集する

編集履歴（0）

元となった辞書の項目

iridium

/ɪˈɹɪd.i.əm/

noun

(uncountable) A chemical element (symbol Ir) with an atomic number of 77: a very hard, brittle, silvery-white transition metal of the platinum group. / (countable) A single atom of this element.