Dictionary

urologist A physician who specializes in diseases of the urinary organs in females and the urinary and sex organs in males.

USFDA The United States Food and Drug Administration. See Food and Drug Administration.

uniparous Having one offspring in a birth. See also multiparous.

unipolar depression See depression.

United Network for Organ Sharing A medical agency in the US that coordinates organ donations, including matching potential donors and recipients. Abbreviated UNOS.

United States Public Health Service The part of the Department of Health and Human Services (HHS) that is responsible for the public health of the US population. Abbreviated USPHS. USPHS administers a number of important health agencies, including the Food and Drug Administration (FDA), the Centers for Disease Control and Prevention (CDC), and the National…

universal colitis See colitis, ulcerative.

UNOS United Network for Organ Sharing.

unresectable Unable to be removed (resected) by surgery.

unsaturated fat A fat that is liquid at room temperature and comes from a plant, such as olive, peanut, corn, cottonseed, sunflower, safflower, or soybean oil. Unsaturated fat tends not to raise the level of LDL (“bad”) cholesterol in the blood.

unsteadiness Loss of one’s equilibrium in respect to the environment, often with a feeling of almost falling and often as a result of bumping into something. There are many causes for unsteadiness, including problems in the cerebral or cerebellar portions of the brain, the spinal cord, vestibular system, or inner ear. See also dizziness; lightheadedness;…

upper GI series A series of X-rays of the upper part of the gastrointestinal tract (the esophagus, stomach, and small intestine) that are taken after a patient drinks a barium solution. See also barium solution; barium swallow.