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).
Definition of Areola. 1. Noun. (anatomy) The colored circle around a nipple, more exactly known as areola mammae. Â¹. 2. Noun. (anatomy) Any small circular area that is different from its immediate environment such as the colored ring around the pupil of the eye (iris) or an inflamed region surrounding a pimple.