Source : Webster's Revised Unabridged Dictionary (1913)

Badger \Badg"er\, n. [Of uncertain origin; perh. fr. an old verb
   badge to lay up provisions to sell again.]
   An itinerant licensed dealer in commodities used for food; a
   hawker; a huckster; -- formerly applied especially to one who
   bought grain in one place and sold it in another. [Now
   dialectic, Eng.]

Badger \Badg"er\, n. [OE. bageard, prob. fr. badge + -ard, in
   reference to the white mark on its forehead. See {Badge},n.]
   1. A carnivorous quadruped of the genus {Meles} or of an
      allied genus. It is a burrowing animal, with short, thick
      legs, and long claws on the fore feet. One species ({M.
      vulgaris}), called also {brock}, inhabits the north of
      Europe and Asia; another species ({Taxidea Americana or
      Labradorica}) inhabits the northern parts of North
      America. See {Teledu}.

   2. A brush made of badgers' hair, used by artists.

   {Badger dog}. (Zo["o]l.) See {Dachshund}.

Badger \Badg"er\, v. t. [imp. & p. p. {Badgered} (?);p. pr. &
   vb. n. {Badgering}.] [For sense 1, see 2d {Badger}; for 2,
   see 1st {Badger}.]
   1. To tease or annoy, as a badger when baited; to worry or
      irritate persistently.

   2. To beat down; to cheapen; to barter; to bargain.

Source : WordNet®

badger
     n : sturdy carnivorous burrowing mammal with strong claws widely
         distributed in the northern hemisphere

badger
     v 1: annoy persistently; "The children teased the boy because of
          his stammer" [syn: {tease}, {pester}, {bug}, {beleaguer}]
     2: persuade through constant efforts