Definition of multiplier

• n. - One who, or that which, multiplies or increases number.
• n. - The number by which another number is multiplied. See the Note under Multiplication.
• n. - An instrument for multiplying or increasing by repetition or accumulation the intensity of a force or action, as heat or electricity. It is particularly used to render such a force or action appreciable or measurable when feeble. See Thermomultiplier.