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imaginary axis

American  
[ih-maj-uh-ner-ee ak-sis] / ɪˈmædʒ əˌnɛr i ˈæk sɪs /

noun

Mathematics.
  1. the vertical axis in an Argand diagram.


Etymology

Origin of imaginary axis

First recorded in 1700–05

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

The horizontal axis is the real axis, and the vertical axis is the imaginary axis.

From Textbooks Feb. 13, 2015

Label the x-axis as the real axis and the y-axis as the imaginary axis.

From Textbooks Feb. 13, 2015

Purkinje noticed that the position of the imaginary axis of rotation depends on the axis around which the head revolves.

From Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 7 "Equation" to "Ethics" by Various

We have seen that the earth rotates upon its imaginary axis once in about every twenty-four hours.

From Astronomy of To-day A Popular Introduction in Non-Technical Language by Dolmage, Cecil Goodrich Julius

Of course only one end of this imaginary axis can be above our horizon.

From Half-hours with the Telescope Being a Popular Guide to the Use of the Telescope as a Means of Amusement and Instruction. by Proctor, Richard A. (Richard Anthony)

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