imaginary number

1. 1.

   (mathematics) a number of the form a+bi where a and b are real numbers and i is the square root of -1

   Synonymscomplex numbercomplex quantityimaginary

   Broadernumber

   Narrowercomplex conjugatereal numberpure imaginary number

   Partsimaginary part

   mathematics

Questions about imaginary number

What does imaginary number mean?

imaginary number means "(mathematics) a number of the form a+bi where a and b are real numbers and i is the square root of -1".

What is another word for imaginary number?

Close synonyms include complex number, complex quantity, imaginary. Each sense on this page lists its own synonyms, because a word with several meanings rarely has one substitute that works for all of them.

Is imaginary number a common word?

imaginary number is banded "Rare" — specialist or archaic — most readers will not have met it. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.