Radiation Medical Definition

Radiation Therapy for Cancer - NCI - National Cancer …

https://www.cancer.gov/about-cancer/treatment/types/radiation-therapy

Radiation therapy kills cancer cells or slows their growth by damaging their DNA. Credit: National Cancer Institute. Radiation therapy (also called radiotherapy) is a cancer treatment that uses high doses of radiation to kill cancer cells and shrink tumors. …

Radiation | definition of radiation by Medical dictionary

https://medical-dictionary.thefreedictionary.com/radiation

radiation [ra″de-a´shun] 1. a proceeding outward from a common center. 2. a structure made up of parts that go outward from a center, especially a tract of the central nervous …

Radiation therapy - Mayo Clinic

https://www.mayoclinic.org/tests-procedures/radiation-therapy/about/pac-20385162

Radiation Definition & Meaning - Merriam-Webster

https://www.merriam-webster.com/dictionary/radiation

radiation: [noun] the action or process of radiating. the process of emitting radiant energy in the form of waves or particles. the combined processes of emission, transmission, and …

Radiation - World Health Organization

https://www.who.int/health-topics/radiation

Radiation. Radiation is energy that travels in the form of waves or particles and is part of our everyday environment. People are exposed to radiation from cosmic rays, as well as to radioactive …

How Radiation Therapy Is Used to Treat Cancer

https://www.cancer.org/treatment/treatments-and-side-effects/treatment-types/radiation/basics.html

Radiation therapy uses high-energy particles or waves, such as x-rays, gamma rays, electron beams, or protons, to destroy or damage cancer cells. Your cells normally grow …

Radiation sickness - Symptoms and causes - Mayo Clinic

https://www.mayoclinic.org/diseases-conditions/radiation-sickness/symptoms-causes/syc-20377058

The initial signs and symptoms of treatable radiation sickness are usually nausea and vomiting. The amount of time between exposure and when these symptoms …

Radiation | Definition, Types, Effects, & Facts | Britannica

https://www.britannica.com/science/radiation

radiation, flow of atomic and subatomic particles and of waves, such as those that characterize heat rays, light rays, and X rays. All matter is constantly bombarded with radiation of both types from cosmic …

Radiation in Healthcare: X-Rays | Radiation | NCEH | CDC

https://www.cdc.gov/nceh/radiation/x-rays.html

X-rays, formally referred to as radiographs, are common imaging procedures ordered by healthcare providers and dentists. X-ray machines pass x-ray beams (a form of ionizing radiation) through a part of the …

Glossary of Radiological Terms - Centers for …

https://emergency.cdc.gov/radiation/pdf/glossary.pdf

Glossary of Radiological Terms (continued from previous page) August 2004 Page 4 of 16 Decay, radioactive: disintegration of the nucleus of an unstable atom by the release of …