[vir.u.lence] n (1663): the quality or state of being virulent: as a: extreme bitterness or malignity of temper: rancor b: malignancy, venomousness "ameliorate the ~ of a disease" c: the relative capacity of a pathogen to overcome body defenses
VIRULENCE
Meaning of VIRULENCE in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012