There are different types, or classes, of drugs that work in different ways to lower blood glucose (blood sugar) levels: 1  Sulfonylureas. 2  Biguanides. 3  Meglitinides. Thiazolidinediones.  DPP-4 1  inhibitors. SGLT2 Inhibitors.  Alpha-glucosidase 1  inhibitors. Bile Acid Sequestrants.
Princeton's WordNet (0.00 / 0 votes) Rate this definition: areola (noun). small space in a tissue or body part such as the area between veins on a leaf or an insect's wing. areola, ring of color (noun).
The colored area around human nipples is called an areola, which is any pigmented area formed on the skin. The areola is caused by the milk ducts beneath the skin. The small bâ¦umps within the areola are called Montgomery glands, and serve to lubricate the nipple and the surrounding skin.