Source : Webster's Revised Unabridged Dictionary (1913)

Venom \Ven"om\, n. [OE. venim, OF. venim, F. venin, L. veneum.
   Cf. {Venenate}.]
   1. Matter fatal or injurious to life; poison; particularly,
      the poisonous, the poisonous matter which certain animals,
      such as serpents, scorpions, bees, etc., secrete in a
      state of health, and communicate by thing or stinging.

            Or hurtful worm with cankered venom bites. --Milton.

   2. Spite; malice; malignity; evil quality. Chaucer. ``The
      venom of such looks.'' --Shak.

   Syn: Venom; virus; bane. See {Poison}.

Venom \Ven"om\, v. t. [OE. venimen, OF. venimer, L. venenare.
   See {Venom}, n.]
   To infect with venom; to envenom; to poison. [R.] ``Venomed
   vengeance.'' --Shak.

Source : WordNet®

venom
     n 1: toxin secreted by animals; secreted by certain snakes and
          poisonous insects (e.g., spiders and scorpions)
     2: feeling a need to see others suffer [syn: {malice}, {maliciousness},
         {spite}, {spitefulness}]