1. The number by which a multiplicand is multiplied
   "In the equation 4 × 3 = 12, 4 is the multiplier";
   - multiplier factor
    
2. Device or system that increases or amplifies something
   "The signal multiplier boosted the weak radio waves"
    
3. (economics) factor by which an economic change amplifies through the economy
   "The spending multiplier increased output"

Derived forms: multipliers

Type of: number

Encyclopedia: Multiplier