Small growths that form on a mucous membrane, most commonly in the nose and sinuses. They are rarely malignant, but may need to be removed surgically to prvent discomfort or chronic infection. Polyps in the lower bowel can sometimes become cancerous.

The group of white cells that is important to your ability to resist bacterial infection. A "poly" count of less than 1,000 indicates less than normal protection and considerable risk of infection.

Shorthand for polygons.

see Granulocytes