multiplier

1. (arithmetic) A number by which another (the multiplicand) is to be multiplied.Examples: "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"

2. (grammar) An adjective indicating the number of times something is to be multiplied.Examples: "English multipliers include "double" and "triple"."

3. (economics) A ratio used to estimate total economic effect for a variety of economic activities.Examples: "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. (physics) Any of several devices used to enhance a signal

5. (physics) Any of several devices used to enhance a signalobsolete