Radiotherapy - English Definition & Meaning

Definition

Radiotherapy, also known as radiation therapy, uses high doses of radiation to kill cancer cells and shrink tumors. It works by damaging the DNA of these cells, preventing them from growing and dividing. Unlike chemotherapy, radiotherapy is often localized, targeting specific areas of the body. Imagine it like a precise laser beam aimed at destroying unwanted invaders. It's a common treatment for many types of cancer, but it can also affect healthy cells in the targeted area. Side effects vary depending on the location and dose of radiation.

Etymology

'Radiotherapy' combines 'radio,' referring to radiation, with 'therapy,' meaning treatment. 'Radio-' comes from the Latin 'radius,' meaning ray, while 'therapy' originates from the Greek 'therapeia,' meaning healing or medical treatment. The term emerged in the early 20th century after the discovery of X-rays and radium, which paved the way for using radiation in medicine. Essentially, it describes healing through radiation.

Related Words

Examples

• "After her breast cancer diagnosis, she underwent radiotherapy to target the tumor."
• "The doctor explained the potential side effects of radiotherapy before starting the treatment."
• "Radiotherapy is often used in combination with surgery and chemotherapy."
• "He felt fatigued during his radiotherapy sessions but remained hopeful."

Encouragement

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