noun🔗ShareMendeleviumA transuranic chemical element (symbol Md, formerly Mv) with atomic number 101."Scientists created only a few atoms of mendelevium in the lab, because it is a very unstable, radioactive element. "Wissenschaftler erzeugten im Labor nur wenige Atome Mendelevium, da es sich um ein sehr instabiles, radioaktives Element handelt.elementchemistryscienceChat with AIVocabulary GamePractice Reading