noun🔗ShareアクチノイドAny of the 14 radioactive elements of the periodic table that are positioned under the lanthanides, to which they have similar chemistry."Uranium, an actinide, is a heavy metal used in some power plants. "アクチノイドであるウランは、一部の発電所で使われる重金属です。elementchemistryscienceChat with AIVocabulary GamePractice Reading
