Source : Webster's Revised Unabridged Dictionary (1913)

Lacerate \Lac"er*ate\, Lacerated \Lac"er*a`ted\, p. a. [L.
   laceratus, p. p.]
   1. Rent; torn; mangled; as, a lacerated wound.

            By each other's fury lacerate         --Southey.

   2. (Bot. & Zo["o]l.) Jagged, or slashed irregularly, at the
      end, or along the edge.

Lacerate \Lac"er*ate\, v. t. [imp. & p. p. {Lacerated}; p. pr. &
   vb. n. {Lacerating} (?>).] [L. laceratus, p. p. of lacerare
   to lacerate, fr. lacer mangled, lacerated; cf. Gr. ? a rent,
   rending, ? to tear; perh. akin to E. slay.]
   To tear; to rend; to separate by tearing; to mangle; as, to
   lacerate the flesh. Hence: To afflict; to torture; as, to
   lacerate the heart.

Source : WordNet®

lacerated
     adj : having edges that are jagged from injury [syn: {lacerate}, {mangled},
            {torn}]