imaginary part

noun

Of a complex number a + bi, where a and b are real numbers, the value b.

Similar
imaginary part of a complex number
Opposite
real part
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Meanings

nounimaginary part (plural imaginary parts)

plural imaginary parts

  1. complex analysisOf a complex number a + bi, where a and b are real numbers, the value b.

Synonyms & antonyms

Opposite
real part

nounthe part of a complex number that has the square root of -1 as a factor

Similar
imaginary part of a complex number
Broader
pure imaginary number

Synonym sets from Open English WordNet, CC BY 4.0.

Translations

Chinese Mandarin 虛部 /虚部
  • 虛部 /虚部 (xūbù)of a complex number
Danish imaginær del
  • imaginær delof a complex number
Finnish imaginaariosa
  • imaginaariosaof a complex number
French partie imaginaire
  • partie imaginaireof a complex number
German Imaginärteil
  • Imaginärteilof a complex number
Hungarian képzetes rész
  • képzetes részof a complex number
Japanese 虚部, 虚数部
  • 虚部 (kyobu)of a complex number
  • 虚数部 (kyosūbu)of a complex number
Russian мни́мая часть
  • мни́мая часть (mnímaja častʹ)of a complex number
Swedish imaginärdel
  • imaginärdelof a complex number
Cite this entry
APA

imaginary part. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/imaginary%20part

MLA

“imaginary part.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/imaginary%20part. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “imaginary part,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/imaginary%20part.

Source: imaginary part on Wiktionary, CC BY-SA 4.0.