1. arithmetic operation: a mathematical operation, symbolized by ×, that for integers is equivalent to adding a number to itself a particular number of times
2. mathematical operation: a mathematical operation equivalent to multiplication extended to expressions such as functions or matrices that are not numbers
3. increase: a marked increase in number or amount a multiplication of claims
4. reproduction: the act or process of reproduction in animals, plants, or people
[14th century. Directly or via French< Latin multiplication-< multiplicat-, past participle of multiplicare (see multiply1)]
