Irradiation

Treatment by ionizing radiation, such as x-rays, or radioactive sources such as radioactive iodine seeds. The use of high-energy radiation from x-rays, gamma rays, neutrons, protons, and other sources to kill cancer cells and shrink tumors. Radiation may come from a...

Irritable Bowel Syndrome

Characterized by abdominal pain and altered bowel function – alternating bouts of constipation and diarrhea. Irritable bowel syndrome is a disorder characterized most commonly by cramping, abdominal pain, bloating, constipation, and diarrhea. IBS causes a great deal...

Laser

An acronym of light amplification by stimulated emission of radiation. A surgical tool that creates intense heat and power when focused at close range, destroying cells by vaporizing them.