Category: U

In the electrocardiogram, a low amplitude deflection that follows the T wave. It is exaggerated in hypokalemia and with digitalis use, and negative in ventricular hypertrophy.  

A relaxed and pendulous condition of the palate.  

A median projection of mucous membrane of the urinary bladder located immediately anterior to the orifice of the urethra.  

A small, triangular elevation on the vermis of the cerebellum of the brain.  

Sensitive to the effects of ultraviolet radiation.  

Resistant to the effects of ultraviolet radiation.  

Glass that is unusually transparent to ultraviolet rays.  

Inflammation of the sclera in which the infection has spread from the uvea.  

A rare complication of cataract surgery with intraocular lens implantation in which patients experience brief episodes of visual loss affecting a single eye, typically months or years after cataract surgery.  

An evergreen perennial shrub, Arctostaphylos uva-ursi (family Ericaceae) — commonly known as bearberry whose dried leaves are used as a urinary antiseptic and diuretic. There have been few clinical trials on its effectiveness.