Source : Webster's Revised Unabridged Dictionary (1913)

Quitclaim \Quit"claim`\, v. t. [imp. & p. p. {Quitclaimed}; p.
   pr. & vb. n. {Quitclaiming}.] (Law)
   To release or relinquish a claim to; to release a claim to by
   deed, without covenants of warranty against adverse and
   paramount titles.

Quitclaim \Quit"claim`\, n. [Quit, a. + claim.] (Law)
   A release or relinquishment of a claim; a deed of release; an
   instrument by which some right, title, interest, or claim,
   which one person has, or is supposed to have, in or to an
   estate held by himself or another, is released or
   relinquished, the grantor generally covenanting only against
   persons who claim under himself.

Source : WordNet®

quitclaim
     n 1: document transferring title or right or claim to another
          [syn: {quitclaim deed}]
     2: act of transferring a title or right or claim to another