radiation therapy vs actinotherapy

radiation therapy and actinotherapy both are nouns.

Word	Noun	Adjective	Verb	Adverb
radiation therapy	Yes	No	No	No
actinotherapy	Yes	No	No	No

As nouns, radiation therapy and actinotherapy are synonyms defined as:

radiation therapy and actinotherapy: (medicine) the treatment of disease (especially cancer) by exposure to a radioactive substance

Other synonyms of radiation therapy include irradiation, radiation, radiotherapy.

radiation therapy (noun)	actinotherapy (noun)
(medicine) the treatment of disease (especially cancer) by exposure to a radioactive substance	(medicine) the treatment of disease (especially cancer) by exposure to a radioactive substance