multiplier

noun7

1. •
   One who multiplies or causes something to increase.
2. •
   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.
3. •
   A ratio used to estimate total economic effect for a variety of economic activities.
4. •
   Any of several devices used to enhance a signal
5. •
   An adjective indicating the number of times something is to be multiplied.

   • English multipliers include "double" and "triple".
6. •
   A multiplier onion.

   • Shallots are the most prolific of all the multipliers, and easier to grow than onions. — 1995
7. •
   (no longer used) 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.