The Collaborative International Dictionary of English v.0.48:

physiatrics \physiatrics\ n.
   Therapy that use physical agents: exercise and massage and so
   on.

   Syn: physical therapy, physiotherapy.
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

physiatrics
    n 1: therapy that uses physical agents: exercise and massage and
         other modalities [syn: physical therapy, physiotherapy,
         physiatrics]