Medical Definition of DUCK. : any of various swimming birds (family Anatidae, the duck family) in which the neck and legs are short, the feet typically webbed, the bill often broad and flat, and the sexes usually different from each other in plumage.edical Definition of DUCK. : any of various swimming birds (family Anatidae, the duck family) in which the neck and legs are short, the feet typically webbed, the bill often broad and flat, and the sexes usually different from each other in plumage.
GDP Growth Rate in the United States averaged 3.25 percent from 1947 until 2015, reaching an all time high of 16.90 percent in the first quarter of 1950 and a record low of -10 percent in the first quarter of 1958.
By itself, GDP doesnât necessarily tell us much about the state of the economy, but change in GDP does. If GDP (after adjusting for inflation) goes up, the economy is growing; if it goes down, the economy is contracting. Economic growth is the increase in the amount of the goods and services produced by an economy over time. It is conventionally measured as the percent rate of increase in real GDP. Growth is usually calculated in real terms, i.e. inflation-adjusted terms, in order to net out the effect of inflation on the price of the goods and services produced.