The Collaborative International Dictionary of English v.0.48:

Recliner \Re*clin"er\ (r[-e]*kl[imac]n"[~e]r), n.
   1. One who, or that which, reclines.
      [1913 Webster]

   2. Specifically: An armchair with a back that can be adjusted
      to lean backward, and a footrest that can be moved up to
      support the legs, or folded under the chair when the
      person is sitting up; the back and footrest are often
      geared so that they move together, allowing the chair to
      be conveniently adjusted either for sitting up or for
      lying back; also called a reclining chair.
      [PJC]

WordNet (r) 3.0 (2006):

recliner
    n 1: an armchair whose back can be lowered and foot can be
         raised to allow the sitter to recline in it [syn:
         recliner, reclining chair, lounger]