virulent

英['vɪrʊl(ə)nt;'vɪrjʊ-] 美['vɪrələnt]

1. extremely poisonous or injurious; producing venom;

"venomous snakes"

"a virulent insect bite"

2. infectious; having the ability to cause disease

3. 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"