Definition of thermotherapy in US English:

thermotherapy

noun

  • The use of heat in conventional or alternative medicine, especially for the relief of muscular pain or stiffness.

    ‘thermotherapy is the best option for relieving pain from muscle spasms or cramps’

Origin

Mid 19th century: from thermo- + therapy.

Pronunciation

thermotherapy

/ˌθərmoʊˈθɛrəpi//ˌTHərmōˈTHerəpē/