Definitions for "Virulent"
Extremely poisonous or venomous; very active in doing injury.
Extremely toxic.
extremely poisonous or injurious; producing venom; "venomous snakes"; "a virulent insect bite"
Very bitter in enmity; actuated by a desire to injure; malignant; as, a virulent invective.
harsh or corrosive in tone; "an acerbic tone piercing otherwise flowery prose"; "a barrage of acid comments"; "her acrid remarks make her many enemies"; "bitter words"; "blistering criticism"; "caustic jokes about political assassination, talk-show hosts and medical ethics"; "a sulfurous denunciation"
infectious; having the ability to cause disease
characterized by a rapid and severe infectious condition.
very infectious.
Highly lethal; causing severe illness or death.
Capable of causing a severe disease; strongly pathogenic. ()
Keywords:  bacterium, host, ability, damage, cause
Refers to the ability of a virus or a bacterium to cause damage to its host.
Strong ability to produce disease.
possessing the ability to produce disease