# imaginary axis

noun, Mathematics
1.
the vertical axis in an Argand diagram.
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Examples from the Web for imaginary axis
Historical Examples
• Pole, the name given to the extremities of the imaginary axis of the earth, round which it is conceived to revolve.

Edited by Rev. James Wood
• The usual gasteropod shell is in reality a hollow tube wound about an imaginary axis.

Augusta Foote Arnold
• imaginary axis it is, but, acting with the panel, it nevertheless arbitrarily limits the position of all parts within the panel.

William H. Varnum
• Revolving on an imaginary axis, the mass grew rounder and rounder, flattening slightly at the poles, or the ends of the axis.

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

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

• It will be noted that all the specimens figured as examples, save one, are spiral, the coils revolving about an imaginary axis.

Augusta Foote Arnold
• The axis Ox is often called the real axis, and the axis Oy the imaginary axis.

• The whorls of spiral univalves generally take an oblique direction in reference to the imaginary axis of the shell.

George Brettingham Sowerby
• A complete turn or revolution round the imaginary axis of a spiral shell.

George Brettingham Sowerby

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