extremely poisonous or injurious; producing venom;
"venomous snakes" "a virulent insect bite"
infectious; having the ability to cause disease
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" "a vitriolic critique"
