Source : Webster's Revised Unabridged Dictionary (1913)

Pollard \Pol"lard\, n. [From {Poll} the head.]
   1. A tree having its top cut off at some height above the
      ground, that may throw out branches. --Pennant.

   2. A clipped coin; also, a counterfeit. [Obs.] --Camden.

   3. (Zo["o]l.)
      (a) A fish, the chub.
      (b) A stag that has cast its antlers.
      (c) A hornless animal (cow or sheep).

Pollard \Pol"lard\, v. t. [imp. & p. p. {Pollarded}; p. pr. &
   vb. n. {Pollarding}.]
   To lop the tops of, as trees; to poll; as, to pollard
   willows. --Evelyn.

Source : WordNet®

pollard
     n 1: a tree with limbs cut back to promote a more bushy growth of
          foliage
     2: a usually horned animal that as either shed its horns or had
        them removed
     v : convert into a pollard; "pollard trees" [syn: {poll}]