noun🔗ShareMagnesioThe 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. "El científico usó magnesio para la demostración en el laboratorio de ciencias.elementsubstancechemistrymaterialscienceChat with AIVocabulary GamePractice Reading