gra·vis 'gra-vəs, 'grä-, 'grā- adj tending to be more virulent than average used esp. of strains of diphtheria bacilli see ICTERUS GRAVIS, ICTERUS GRAVIS NEONATORUM, MYASTHENIA GRAVIS compare INTERMEDIUS, MITIS
Medical dictionary. 2011.
Medical dictionary. 2011.