radiology


ra·di·ol·o·gy

noun \-jē\

medical : a branch of medicine that uses some forms of radiation (such as X-rays) to diagnose and treat diseases

Full Definition of RADIOLOGY

1
:  a branch of medicine concerned with the use of radiant energy (as X-rays) or radioactive material in the diagnosis and treatment of disease
2
:  the science of radioactive substances and high-energy radiations

First Known Use of RADIOLOGY

1900

ra·di·ol·o·gy

noun \-jē\   (Medical Dictionary)
plural ra·di·ol·o·gies

Medical Definition of RADIOLOGY

1
: the science of radioactive substances and high-energy radiations
2
: a branch of medicine concerned with the use of radiant energy (as X-rays or ultrasound) in the diagnosis and treatment of disease

radiology

noun    (Concise Encyclopedia)

Branch of medicine that uses radiation for diagnosis (diagnostic imaging) and treatment (radiation therapy) of disease. Originally, it involved X rays for diagnosis and X rays, gamma rays, and other ionizing radiation for treatment. Diagnostic methods now include isotope scanning (see nuclear medicine), use of nonionizing radiation, as in ultrasound and magnetic resonance imaging, and radioimmunoassay (in which radioactive isotopes in antibodies against hormones detect minute amounts of hormones for diagnosis of endocrine disorders). Radiotherapy now includes, in cancer treatment, radioactive hormones and chemotherapeutic drugs.

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