multiplier

noun

1. 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.”

   “The electron number constraint unlike the idempotency constraint can be represented by a single equation. For this reason, one can properly incorporate this constraint using a Lagrange multiplier and defining an effective chemical potential”

   “After studying a recursive formulation and the associated Bellman equation, in section 5.5 we analyze a Lagrangian formulation that provides useful insights about how Lagrange multipliers on transition laws relate to gradients of value functions.”

   “But that can be ignored, because the USTR has set ε at 4 and φ at 0.25, so when computed give an overall multiplier of 1 for the imports number. And multiplying by 1 makes no difference at all.”

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

   “English multipliers include "double" and "triple".”

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

   “There is a second-round effect of crowding in higher private investment as public sector contractors tool up to meet the public contracts, and then a third – as all firms adjust to the higher level of demand by raising business investment levels – of more crowding in and so-called “multiplier effects”.”

4. Any of several devices used to enhance a signal
5. (obsolete)Any of several devices used to enhance a signal
6. A multiplier onion.

   “Shallots are the most prolific of all the multipliers, and easier to grow than onions.”