Definition of actinotherapy in English:

actinotherapy

noun

Medicine
rare
  • Originally: treatment of disease by means of light; = "phototherapy". In later use also: = "radiotherapy".

Origin

Early 20th century. From actino- + therapy, probably after German Actinotherapie. Compare French actinothérapie.

Pronunciation

actinotherapy

/ˌaktɪnə(ʊ)ˈθɛrəpi/