hydrotherapy hydrotherapy /ˌhaɪdroʊˈθɛrəpi/

noun

1. The internal and external use of water in the treatment of disease  ( hydropathy , hydrotherapy )
   the internal and external use of water in the treatment of disease
    Hydrotherapy is a type of therapy that uses water to relieve pain and promote healing
   Hydrotherapy is a type of therapy that uses water to relieve pain and promote healing