The American Heritage® Dictionary of the English Language, 4th Edition
n. A drug for use in the management of non-insulin-dependent diabetes that reduces plasma glucose by slowing the absorption of starches and sugars from the intestine.
n. An antidiabetic drug that inhibits alpha glucosidase.
Word Usage
"In fact, three of the newer medicines — acarbose and miglitol (both alpha-glucosidase inhibitors) and nateglinide (a meglitinide) — actually decrease HbA1c less than some of the older drugs."