G

460 glomerulonephritis Inflammation of the glomeruli in the kidneys, which can lead to gl°ssary impaired kidney function.

glomerulus Singular of glomeruli. A tiny cluster of blood vessels inside the nephrons in the kidneys.

glucose A simple sugar that is the body's main source of energy.

glucose meter A device used by people with diabetes to measure blood glucose levels.

golfer's elbow See epicondylitis.

gonioscopy Examination of the drainage angle of the eyeball using a special contact lens called a gonioscope. Gonioscopy is used to diagnose glaucoma.

gonorrhea A common sexually transmitted disease (STD) caused by the gonococcus bacteria and characterized by painful urination and discharge of pus from the penis.

"good" cholesterol See high-density lipoprotein (HDL) cholesterol.

gout A metabolic disorder characterized by high levels of uric acid in the blood, causing joint pain and inflammation, usually in a single joint.

granuloma A tumorlike mass of cells.

gum The soft tissue that surrounds the teeth.

gum disease See periodontal disease.

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