radiology

n. use of radiant energy in medical diagnosis and therapy

This article focuses on radiology as a medical specialty. See also medical imaging and diagnostic imaging. For industrial application see Radiography.Radiology is the medical specialty directing medical imaging technologies to diagnose and sometimes treat diseases. Originally it was the aspect of medical science dealing with the medical use of electromagnetic energy emitted by X-ray machines or other such radiation devices for the purpose of obtaining visual information as part of medical imaging. Radiology that involves use of x-ray is called roentgenology. Today, following extensive training, radiologists direct an array of imaging technologies (such as ultrasound, computed tomography (CT) and magnetic resonance imaging) to diagnose or treat disease. Interventional radiology is the performance of (usually minimally invasive) medical procedures with the guidance of imaging technologies. The acquisition of medical imaging is usually carried out by the radiographer or radiologic technologist. Outside of the medical field, radiology also encompasses the examination of the inner structure of objects using X-rays or other penetrating radiation.
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Radiology /ra·di·ol·o·gy/ that branch of the health sciences dealing with radioactive substances and radiant energy and with the diagnosis and [more]Radiology - Community and Resources

Noun
1. the branch of medical science dealing with the medical use of X-rays or other penetrating radiation
(hypernym) medical science
(class) radioscopy
2. (radiology) examination of the inner structure of opaque objects using X rays or other penetrating radiation
(synonym) radioscopy
(hypernym) imaging, tomography
(hyponym) fluoroscopy

The science of radiation, both ionizing (like X-ray) and nonionizing (like ultrasound), applied to the diagnosis and treatment of disease. Radiology is also known as roentgenology after Wilhelm Conrad Roentgen who discovered X-rays in 1895.