# Complex quantity synonyms

##### Category:

A number that can be expressed in terms of

*i*(the square root of −1). Mathematically, such a number can be written*a*+*bi,*where*a*and*b*are real numbers. An example is 4 + 5*i.* A type of complex number in which the multiple of

*i*(the square root of −1) is not equal to zero. Examples of imaginary numbers include 4*i*and 2 − 3*i*, but not 3 + 0*i*(which is just 3). (Mathematics) An imaginary quantity. [from 18th c.]

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**complex quantity**. In this page you can discover 3 synonyms, antonyms, idiomatic expressions, and related words for**complex quantity**, like: complex-number, imaginary-number and imaginary.