# imaginary part

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Related to imaginary part: complex number, Real part

## imaginary part

*n*

(Mathematics) the coefficient

*b*in a complex number*a*+ i*b*, where i = √–1Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

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Noun | 1. | imaginary part - the part of a complex number that has the square root of -1 as a factorcomplex number, complex quantity, imaginary, imaginary number - (mathematics) a number of the form a+bi where a and b are real numbers and i is the square root of -1 pure imaginary number - an imaginary number of the form a+bi where a is 0 |

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