The Collaborative International Dictionary of English v.0.48:

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 (Meles
      meles or Meles vulgaris), called also brock, inhabits
      the north of Europe and Asia; another species (Taxidea
      taxus or Taxidea Americana or Taxidea Labradorica)
      inhabits the northern parts of North America. See
      Teledu.
      [1913 Webster]

   2. A brush made of badgers' hair, used by artists.
      [1913 Webster]

   Badger dog. (Zool.) See Dachshund.
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The Collaborative International Dictionary of English v.0.48:

Brocket \Brock"et\ (br[o^]k"[e^]t), n. [OE. broket, F. broquart
   fallow deer a year old, fr. the same root as E. broach,
   meaning point (hence tine of a horn).]
   1. (Zool.) A male red deer two years old; -- sometimes called
      brock.
      [1913 Webster]

   2. (Zool.) A small South American deer, of several species
      (Coassus superciliaris, Coassus rufus, and Coassus
      auritus).
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Brock \Brock\, n. [AS. broc, fr. W. broch; akin to Ir. & Gael.
   broc, Corn. & Armor. broch; cf. Ir. & Gael. breac speckled.]
   (Zool.)
   A badger.
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         Or with pretense of chasing thence the brock. --B.
                                                  Jonson.
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The Collaborative International Dictionary of English v.0.48:

Brock \Brock\, n. [See Brocket.] (Zool.)
   A brocket. --Bailey.
   [1913 Webster] Brocken specter