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3. multiplication-an arithmetic operation that is the inverse of division; the product of two numbers is computed; the multiplication of four by three gives twelve; four times three equals twelve. times. arithmetic operation-a mathematical operation involving numbers.
Webster Dictionary(0.00 / 0 votes)Rate this definition: Multiplication(noun) the act or process of multiplying, or of increasing in number; the state of being multiplied; as, the multiplication of the human species by natural generation. Multiplication(noun) the process of repeating, or adding to itself, any given number or quantity a certain number of times; commonly, the process of ascertaining by a briefer computation the result of such repeated additions; also, the rule by which the operation is performed; -- the reverse of division.