Source : Webster's Revised Unabridged Dictionary (1913)

Dent \Dent\, v. t. [imp. & p. p. {Dented}; p. pr. & vb. n.
   {Denting}.]
   To make a dent upon; to indent.

         The houses dented with bullets.          --Macaulay.

Dented \Dent"ed\, a. [From {Dent}, v. t.]
   Indented; impressed with little hollows.

Source : WordNet®

dented
     adj : of metal e.g.; "bent nails"; "a car with a crumpled front
           end"; "dented fenders" [syn: {bent}, {crumpled}]