Definition

1. Noun:
   • (Medicine) The treatment of disease, especially cancer, by exposure to a radioactive substance. This term refers specifically to a therapeutic procedure using ionizing radiation.

Usage Examples

• Noun:
  • The oncologist recommended a course of actinotherapy for the tumor.
  • Advances in actinotherapy have improved survival rates for certain cancers.

Advanced Usage

• Technical Context: In medical literature, "actinotherapy" is a precise term for radiotherapy or radiation therapy, focusing on the use of radiant energy (especially from radioactive sources).
  • The study compared the efficacy of surgery versus actinotherapy for early-stage laryngeal cancer.

Variants and Related Words

• Radiotherapy (n): A more common synonym for the treatment of disease using radiation.
• Radiation Therapy (n): The full term for the same medical procedure.
• Teletherapy (n): A form of actinotherapy where the radiation source is external to the body.
• Brachytherapy (n): A form of actinotherapy where a radioactive source is placed inside or very close to the area needing treatment.

Synonyms

• Radiotherapy
• Radiation Therapy
• Irradiation (in a therapeutic context)

Notes on Meaning

• Specificity: While "actinotherapy" broadly means treatment with any radiant energy, in modern medical usage, it is almost exclusively associated with the therapeutic use of ionizing radiation (like X-rays or gamma rays) for conditions such as cancer. It is not typically used for treatments involving light (e.g., phototherapy for skin conditions).

Noun

1. (medicine) the treatment of disease (especially cancer) by exposure to a radioactive substance