Definitions of pollard:

• noun:   a usually horned animal that as either shed its horns or had them removed
• noun:   a tree with limbs cut back to promote a more bushy growth of foliage
• verb:   convert into a pollard

  Example: "Pollard trees"

• name:  A surname (common: 1 in 7142 families; popularity rank in the U.S.: #866)