noun🔗ShareMagnesiumThe chemical element (symbol Mg) with an atomic number of 12. It is a light, easily flammable, silvery-white alkaline earth metal."The scientist used magnesium for the demonstration in the science lab. "Der Wissenschaftler verwendete Magnesium für die Demonstration im Labor.elementsubstancechemistrymaterialscienceChat with AIVocabulary GamePractice Reading