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Multiplier

//ˈmʌltɪˌplaɪəɹ// noun

Noun

1
A number by which another (the multiplicand) is to be multiplied.
"In the expression 5 × 7, the "5" is a multiplier."
2
the number by which a multiplicand is multiplied wordnet
3
An adjective indicating the number of times something is to be multiplied.
"English multipliers include "double" and "triple"."
4
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”."
5
Any of several devices used to enhance a signal

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6
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. obsolete
7
A multiplier onion.
"Shallots are the most prolific of all the multipliers, and easier to grow than onions."

From multiply + -er.

Unscramble this word: multiplier