Radiation(RAY-dee-AY-shun) Energy released in the form of particle or electromagnetic waves.
Radiation Oncologist(RAY-dee-AY-shun on-KAH-loh-jist) A doctor who specializes in using radiation to treat cancer.
Radiation Therapy(RAY-dee-AY-shun THAYR-uh-pee) The use of high-energy radiation from x-rays, gamma rays, neutrons, protons, and other sources to kill cancer cells and…
Radiologist(RAY-dee-AH-loh-jist) A doctor who specializes in creating and interpreting pictures of areas inside the body.
Radiotherapeutic ablation(ray"-dee-o-ther"-uh-pyoo'-tik ay-blay"-shun) therapy using ionizing radiation to remove or destroy a part.
RetrospectiveLooking back at events that have already taken place.
Rheumatoid arthritis(ROO-muh-TOYD ar-THRY-tis) An autoimmune disease that causes pain, swelling, and stiffness in the joints, and may cause severe joint damage, loss of…
Rooting reflex(ROO'-ting REE'-flex) a reflex in infants that causes the turning of the head to the nipple and opening of the mouth when the cheek is touched or stroked.