multiplier
n. countablen. a number that you multiply another number by. In business or science, it also describes a factor that causes a much larger increase in a total result.
n. a quantity by which a given number is to be multiplied. In macroeconomics, it refers to a factor by which an initial change in spending causes a larger change in national income.
In the equation 5 times 3, the number 3 is the multiplier.
Economists argue that government investment in infrastructure has a high multiplier effect on the local economy.
The fiscal multiplier measures the ratio in which a change in government spending causes a change in the overall gross domestic product, reflecting the broader impact of initial capital injections.
From multiply + -er.
Commonly used in the phrase 'multiplier effect' to describe a chain reaction of growth.