multiplier.

One who multiplies or causes something to increase.

A number by which another (the multiplicand) is to be multiplied.

In the expression 5 × 7, the "5" is a multiplier.

The score multiplier increases each time you complete a level of the video game.

An adjective indicating the number of times something is to be multiplied.

English multipliers include "double" and "triple".

A ratio used to estimate total economic effect for a variety of economic activities.

Any of several devices used to enhance a signal

Any of several devices used to enhance a signal a coil; when Johann Schweigger in 1820 invented the electric coil, increasing the electro-magnetic field from a single wire, this invention was called a multiplier.

A multiplier onion.