pure imaginary number

/pjʊər ɪˌmædʒəˈnɛri ˌnʌmbər/
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Definitions of pure imaginary number
  1. noun
    an imaginary number of the form a+bi where a is 0
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    types:
    imaginary part, imaginary part of a complex number
    the part of a complex number that has the square root of -1 as a factor
    type of:
    complex 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
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