Search Result for "virulent": 
Wordnet 3.0

ADJECTIVE (3)

1. extremely poisonous or injurious; producing venom;
- Example: "venomous snakes"
- Example: "a virulent insect bite"
[syn: deadly, venomous, virulent]

2. infectious; having the ability to cause disease;

3. harsh or corrosive in tone;
- Example: "an acerbic tone piercing otherwise flowery prose"
- Example: "a barrage of acid comments"
- Example: "her acrid remarks make her many enemies"
- Example: "bitter words"
- Example: "blistering criticism"
- Example: "caustic jokes about political assassination, talk-show hosts and medical ethics"
- Example: "a sulfurous denunciation"
- Example: "a vitriolic critique"
[syn: acerb, acerbic, acid, acrid, bitter, blistering, caustic, sulfurous, sulphurous, virulent, vitriolic]



The Collaborative International Dictionary of English v.0.48:

Virulent \Vir"u*lent\, a. [L. virulentus, fr. virus poison: cf.
   F. virulent. See Virus.]
   1. Extremely poisonous or venomous; very active in doing
      injury.
      [1913 Webster]

            A contagious disorder rendered more virulent by
            uncleanness.                          --Sir W.
                                                  Scott.
      [1913 Webster]

   2. Very bitter in enmity; actuated by a desire to injure;
      malignant; as, a virulent invective.
      [1913 Webster]


WordNet (r) 3.0 (2006):

virulent
    adj 1: extremely poisonous or injurious; producing venom;
           "venomous snakes"; "a virulent insect bite" [syn:
           deadly, venomous, virulent]
    2: infectious; having the ability to cause disease [ant:
       avirulent]
    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"; "a vitriolic critique" [syn:
       acerb, acerbic, acid, acrid, bitter, blistering,
       caustic, sulfurous, sulphurous, virulent,
       vitriolic]